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Finding the Fourth Proportional to 436,252.25, 654,386.58 and 136,726.20

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Solution

The fourth proportional to 436,252.25, 654,386.58 and 136,726.20 is: 205,091.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    436,252.25 : 654,386.58 = 136,726.20 : x
  2. Step 2: Convert to fraction form
    436,252.25/654,386.58 = 136,726.20/x
  3. Step 3: Cross multiply
    436,252.25x = 654,386.58 × 136,726.20
  4. Step 4: Simplify right side
    436,252.25x = 89,471,790,414.40
  5. Step 5: Solve for x
    x = 89,471,790,414.40/436,252.25
  6. Step 6: Final answer
    x = 205,091.87

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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.