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Finding the Fourth Proportional to 91,329.66, 136,998.54 and 35,149.68

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Solution

The fourth proportional to 91,329.66, 136,998.54 and 35,149.68 is: 52,726.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,329.66 : 136,998.54 = 35,149.68 : x
  2. Step 2: Convert to fraction form
    91,329.66/136,998.54 = 35,149.68/x
  3. Step 3: Cross multiply
    91,329.66x = 136,998.54 × 35,149.68
  4. Step 4: Simplify right side
    91,329.66x = 4,815,454,841.47
  5. Step 5: Solve for x
    x = 4,815,454,841.47/91,329.66
  6. Step 6: Final answer
    x = 52,726.08

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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.