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Finding the Fourth Proportional to 159,861.84, 220,689.18 and 99,452.10

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Solution

The fourth proportional to 159,861.84, 220,689.18 and 99,452.10 is: 137,293.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,861.84 : 220,689.18 = 99,452.10 : x
  2. Step 2: Convert to fraction form
    159,861.84/220,689.18 = 99,452.10/x
  3. Step 3: Cross multiply
    159,861.84x = 220,689.18 × 99,452.10
  4. Step 4: Simplify right side
    159,861.84x = 21,948,002,398.28
  5. Step 5: Solve for x
    x = 21,948,002,398.28/159,861.84
  6. Step 6: Final answer
    x = 137,293.57

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.