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Finding the Fourth Proportional to 66,106.20, 99,305.10 and 63,627.60

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Solution

The fourth proportional to 66,106.20, 99,305.10 and 63,627.60 is: 95,581.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,106.20 : 99,305.10 = 63,627.60 : x
  2. Step 2: Convert to fraction form
    66,106.20/99,305.10 = 63,627.60/x
  3. Step 3: Cross multiply
    66,106.20x = 99,305.10 × 63,627.60
  4. Step 4: Simplify right side
    66,106.20x = 6,318,545,180.76
  5. Step 5: Solve for x
    x = 6,318,545,180.76/66,106.20
  6. Step 6: Final answer
    x = 95,581.73

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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.