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Finding the Fourth Proportional to 164,981,856.80, 247,472,785.20 and 88,454,352.80

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Solution

The fourth proportional to 164,981,856.80, 247,472,785.20 and 88,454,352.80 is: 132,681,529.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    164,981,856.80 : 247,472,785.20 = 88,454,352.80 : x
  2. Step 2: Convert to fraction form
    164,981,856.80/247,472,785.20 = 88,454,352.80/x
  3. Step 3: Cross multiply
    164,981,856.80x = 247,472,785.20 × 88,454,352.80
  4. Step 4: Simplify right side
    164,981,856.80x = 21,890,045,050,479,416
  5. Step 5: Solve for x
    x = 21,890,045,050,479,416/164,981,856.80
  6. Step 6: Final answer
    x = 132,681,529.20

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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.