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Finding the Fourth Proportional to 160,704.97, 221,757.95 and 89,078.90

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Solution

The fourth proportional to 160,704.97, 221,757.95 and 89,078.90 is: 122,920.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    160,704.97 : 221,757.95 = 89,078.90 : x
  2. Step 2: Convert to fraction form
    160,704.97/221,757.95 = 89,078.90/x
  3. Step 3: Cross multiply
    160,704.97x = 221,757.95 × 89,078.90
  4. Step 4: Simplify right side
    160,704.97x = 19,753,953,366.16
  5. Step 5: Solve for x
    x = 19,753,953,366.16/160,704.97
  6. Step 6: Final answer
    x = 122,920.61

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1.5x scale

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.