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Finding the Fourth Proportional to 147,801.70, 221,572.95 and 88,660.90

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Solution

The fourth proportional to 147,801.70, 221,572.95 and 88,660.90 is: 132,913.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,801.70 : 221,572.95 = 88,660.90 : x
  2. Step 2: Convert to fraction form
    147,801.70/221,572.95 = 88,660.90/x
  3. Step 3: Cross multiply
    147,801.70x = 221,572.95 × 88,660.90
  4. Step 4: Simplify right side
    147,801.70x = 19,644,857,162.66
  5. Step 5: Solve for x
    x = 19,644,857,162.66/147,801.70
  6. Step 6: Final answer
    x = 132,913.61

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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.