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Finding the Fourth Proportional to 141,806.92, 195,691.04 and 77,276.73

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Solution

The fourth proportional to 141,806.92, 195,691.04 and 77,276.73 is: 106,640.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,806.92 : 195,691.04 = 77,276.73 : x
  2. Step 2: Convert to fraction form
    141,806.92/195,691.04 = 77,276.73/x
  3. Step 3: Cross multiply
    141,806.92x = 195,691.04 × 77,276.73
  4. Step 4: Simplify right side
    141,806.92x = 15,122,364,298.74
  5. Step 5: Solve for x
    x = 15,122,364,298.74/141,806.92
  6. Step 6: Final answer
    x = 106,640.52

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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.