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Finding the Fourth Proportional to 64,473,619.20, 96,710,428.80 and 60,691,372.80

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Solution

The fourth proportional to 64,473,619.20, 96,710,428.80 and 60,691,372.80 is: 91,037,059.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,473,619.20 : 96,710,428.80 = 60,691,372.80 : x
  2. Step 2: Convert to fraction form
    64,473,619.20/96,710,428.80 = 60,691,372.80/x
  3. Step 3: Cross multiply
    64,473,619.20x = 96,710,428.80 × 60,691,372.80
  4. Step 4: Simplify right side
    64,473,619.20x = 5,869,488,687,948,656
  5. Step 5: Solve for x
    x = 5,869,488,687,948,656/64,473,619.20
  6. Step 6: Final answer
    x = 91,037,059.20

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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.