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Finding the Fourth Proportional to 261,737.65, 392,559.76 and 69,613.17

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Solution

The fourth proportional to 261,737.65, 392,559.76 and 69,613.17 is: 104,407.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    261,737.65 : 392,559.76 = 69,613.17 : x
  2. Step 2: Convert to fraction form
    261,737.65/392,559.76 = 69,613.17/x
  3. Step 3: Cross multiply
    261,737.65x = 392,559.76 × 69,613.17
  4. Step 4: Simplify right side
    261,737.65x = 27,327,327,922.96
  5. Step 5: Solve for x
    x = 27,327,327,922.96/261,737.65
  6. Step 6: Final answer
    x = 104,407.32

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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.