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Finding the Fourth Proportional to 404,545.26, 606,916.68 and 134,672.87

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Solution

The fourth proportional to 404,545.26, 606,916.68 and 134,672.87 is: 202,042.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    404,545.26 : 606,916.68 = 134,672.87 : x
  2. Step 2: Convert to fraction form
    404,545.26/606,916.68 = 134,672.87/x
  3. Step 3: Cross multiply
    404,545.26x = 606,916.68 × 134,672.87
  4. Step 4: Simplify right side
    404,545.26x = 81,735,210,473.11
  5. Step 5: Solve for x
    x = 81,735,210,473.11/404,545.26
  6. Step 6: Final answer
    x = 202,042.19

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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.