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Finding the Fourth Proportional to 113,644.92, 156,833.70 and 62,659.80

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Solution

The fourth proportional to 113,644.92, 156,833.70 and 62,659.80 is: 86,472.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,644.92 : 156,833.70 = 62,659.80 : x
  2. Step 2: Convert to fraction form
    113,644.92/156,833.70 = 62,659.80/x
  3. Step 3: Cross multiply
    113,644.92x = 156,833.70 × 62,659.80
  4. Step 4: Simplify right side
    113,644.92x = 9,827,168,275.26
  5. Step 5: Solve for x
    x = 9,827,168,275.26/113,644.92
  6. Step 6: Final answer
    x = 86,472.57

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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.