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Finding the Fourth Proportional to 113,477.31, 156,597.39 and 62,489.01

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Solution

The fourth proportional to 113,477.31, 156,597.39 and 62,489.01 is: 86,234.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,477.31 : 156,597.39 = 62,489.01 : x
  2. Step 2: Convert to fraction form
    113,477.31/156,597.39 = 62,489.01/x
  3. Step 3: Cross multiply
    113,477.31x = 156,597.39 × 62,489.01
  4. Step 4: Simplify right side
    113,477.31x = 9,785,615,869.68
  5. Step 5: Solve for x
    x = 9,785,615,869.68/113,477.31
  6. Step 6: Final answer
    x = 86,234.12

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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.