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Finding the Fourth Proportional to 98,356.46, 135,753.37 and 62,539.47

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Solution

The fourth proportional to 98,356.46, 135,753.37 and 62,539.47 is: 86,318.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,356.46 : 135,753.37 = 62,539.47 : x
  2. Step 2: Convert to fraction form
    98,356.46/135,753.37 = 62,539.47/x
  3. Step 3: Cross multiply
    98,356.46x = 135,753.37 × 62,539.47
  4. Step 4: Simplify right side
    98,356.46x = 8,489,943,654.17
  5. Step 5: Solve for x
    x = 8,489,943,654.17/98,356.46
  6. Step 6: Final answer
    x = 86,318.11

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.