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Finding the Fourth Proportional to 66,000.20, 98,903.10 and 56,085.80

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Solution

The fourth proportional to 66,000.20, 98,903.10 and 56,085.80 is: 84,046.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,000.20 : 98,903.10 = 56,085.80 : x
  2. Step 2: Convert to fraction form
    66,000.20/98,903.10 = 56,085.80/x
  3. Step 3: Cross multiply
    66,000.20x = 98,903.10 × 56,085.80
  4. Step 4: Simplify right side
    66,000.20x = 5,547,059,485.98
  5. Step 5: Solve for x
    x = 5,547,059,485.98/66,000.20
  6. Step 6: Final answer
    x = 84,046.10

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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.