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Finding the Fourth Proportional to 435,793.40, 653,727.78 and 120,250.32

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Solution

The fourth proportional to 435,793.40, 653,727.78 and 120,250.32 is: 180,385.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    435,793.40 : 653,727.78 = 120,250.32 : x
  2. Step 2: Convert to fraction form
    435,793.40/653,727.78 = 120,250.32/x
  3. Step 3: Cross multiply
    435,793.40x = 653,727.78 × 120,250.32
  4. Step 4: Simplify right side
    435,793.40x = 78,610,974,737.89
  5. Step 5: Solve for x
    x = 78,610,974,737.89/435,793.40
  6. Step 6: Final answer
    x = 180,385.88

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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.