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Finding the Fourth Proportional to 91,569.69, 137,353.17 and 25,009.71

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Solution

The fourth proportional to 91,569.69, 137,353.17 and 25,009.71 is: 37,514.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,569.69 : 137,353.17 = 25,009.71 : x
  2. Step 2: Convert to fraction form
    91,569.69/137,353.17 = 25,009.71/x
  3. Step 3: Cross multiply
    91,569.69x = 137,353.17 × 25,009.71
  4. Step 4: Simplify right side
    91,569.69x = 3,435,163,159.92
  5. Step 5: Solve for x
    x = 3,435,163,159.92/91,569.69
  6. Step 6: Final answer
    x = 37,514.19

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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.