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Finding the Fourth Proportional to 113,628.73, 156,808.43 and 63,330.97

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Solution

The fourth proportional to 113,628.73, 156,808.43 and 63,330.97 is: 87,397.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,628.73 : 156,808.43 = 63,330.97 : x
  2. Step 2: Convert to fraction form
    113,628.73/156,808.43 = 63,330.97/x
  3. Step 3: Cross multiply
    113,628.73x = 156,808.43 × 63,330.97
  4. Step 4: Simplify right side
    113,628.73x = 9,930,829,976.08
  5. Step 5: Solve for x
    x = 9,930,829,976.08/113,628.73
  6. Step 6: Final answer
    x = 87,397.17

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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.