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Finding the Fourth Proportional to 113,672.57, 156,865.11 and 62,684.42

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Solution

The fourth proportional to 113,672.57, 156,865.11 and 62,684.42 is: 86,502.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,672.57 : 156,865.11 = 62,684.42 : x
  2. Step 2: Convert to fraction form
    113,672.57/156,865.11 = 62,684.42/x
  3. Step 3: Cross multiply
    113,672.57x = 156,865.11 × 62,684.42
  4. Step 4: Simplify right side
    113,672.57x = 9,832,997,419.19
  5. Step 5: Solve for x
    x = 9,832,997,419.19/113,672.57
  6. Step 6: Final answer
    x = 86,502.82

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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.