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Finding the Fourth Proportional to 113,215.32, 156,239.80 and 62,227.64

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Solution

The fourth proportional to 113,215.32, 156,239.80 and 62,227.64 is: 85,875.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,215.32 : 156,239.80 = 62,227.64 : x
  2. Step 2: Convert to fraction form
    113,215.32/156,239.80 = 62,227.64/x
  3. Step 3: Cross multiply
    113,215.32x = 156,239.80 × 62,227.64
  4. Step 4: Simplify right side
    113,215.32x = 9,722,434,263.10
  5. Step 5: Solve for x
    x = 9,722,434,263.10/113,215.32
  6. Step 6: Final answer
    x = 85,875.61

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