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Finding the Fourth Proportional to 132,793.05, 183,254.42 and 72,363.68

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Solution

The fourth proportional to 132,793.05, 183,254.42 and 72,363.68 is: 99,861.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,793.05 : 183,254.42 = 72,363.68 : x
  2. Step 2: Convert to fraction form
    132,793.05/183,254.42 = 72,363.68/x
  3. Step 3: Cross multiply
    132,793.05x = 183,254.42 × 72,363.68
  4. Step 4: Simplify right side
    132,793.05x = 13,260,962,929.38
  5. Step 5: Solve for x
    x = 13,260,962,929.38/132,793.05
  6. Step 6: Final answer
    x = 99,861.87

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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.