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Finding the Fourth Proportional to 172,362.71, 258,545.21 and 60,045.05

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Solution

The fourth proportional to 172,362.71, 258,545.21 and 60,045.05 is: 90,067.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,362.71 : 258,545.21 = 60,045.05 : x
  2. Step 2: Convert to fraction form
    172,362.71/258,545.21 = 60,045.05/x
  3. Step 3: Cross multiply
    172,362.71x = 258,545.21 × 60,045.05
  4. Step 4: Simplify right side
    172,362.71x = 15,524,360,061.71
  5. Step 5: Solve for x
    x = 15,524,360,061.71/172,362.71
  6. Step 6: Final answer
    x = 90,067.97

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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.