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Finding the Fourth Proportional to 172,706.55, 258,842.13 and 92,545.71

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Solution

The fourth proportional to 172,706.55, 258,842.13 and 92,545.71 is: 138,701.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,706.55 : 258,842.13 = 92,545.71 : x
  2. Step 2: Convert to fraction form
    172,706.55/258,842.13 = 92,545.71/x
  3. Step 3: Cross multiply
    172,706.55x = 258,842.13 × 92,545.71
  4. Step 4: Simplify right side
    172,706.55x = 23,954,728,698.76
  5. Step 5: Solve for x
    x = 23,954,728,698.76/172,706.55
  6. Step 6: Final answer
    x = 138,701.91

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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.