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Finding the Fourth Proportional to 66,697,523.80, 100,046,285.70 and 66,059,794.60

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Solution

The fourth proportional to 66,697,523.80, 100,046,285.70 and 66,059,794.60 is: 99,089,691.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,697,523.80 : 100,046,285.70 = 66,059,794.60 : x
  2. Step 2: Convert to fraction form
    66,697,523.80/100,046,285.70 = 66,059,794.60/x
  3. Step 3: Cross multiply
    66,697,523.80x = 100,046,285.70 × 66,059,794.60
  4. Step 4: Simplify right side
    66,697,523.80x = 6,609,037,083,834,918
  5. Step 5: Solve for x
    x = 6,609,037,083,834,918/66,697,523.80
  6. Step 6: Final answer
    x = 99,089,691.90

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Double scale
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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.