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Finding the Fourth Proportional to 117,659.39, 176,489.08 and 47,587.91

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Solution

The fourth proportional to 117,659.39, 176,489.08 and 47,587.91 is: 71,381.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,659.39 : 176,489.08 = 47,587.91 : x
  2. Step 2: Convert to fraction form
    117,659.39/176,489.08 = 47,587.91/x
  3. Step 3: Cross multiply
    117,659.39x = 176,489.08 × 47,587.91
  4. Step 4: Simplify right side
    117,659.39x = 8,398,745,453.61
  5. Step 5: Solve for x
    x = 8,398,745,453.61/117,659.39
  6. Step 6: Final answer
    x = 71,381.86

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.