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Finding the Fourth Proportional to 88,660.20, 132,917.40 and 47,107.20

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Solution

The fourth proportional to 88,660.20, 132,917.40 and 47,107.20 is: 70,622.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,660.20 : 132,917.40 = 47,107.20 : x
  2. Step 2: Convert to fraction form
    88,660.20/132,917.40 = 47,107.20/x
  3. Step 3: Cross multiply
    88,660.20x = 132,917.40 × 47,107.20
  4. Step 4: Simplify right side
    88,660.20x = 6,261,366,545.28
  5. Step 5: Solve for x
    x = 6,261,366,545.28/88,660.20
  6. Step 6: Final answer
    x = 70,622.07

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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.