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Finding the Fourth Proportional to 91,097.50, 125,661.92 and 54,773.71

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Solution

The fourth proportional to 91,097.50, 125,661.92 and 54,773.71 is: 75,556.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,097.50 : 125,661.92 = 54,773.71 : x
  2. Step 2: Convert to fraction form
    91,097.50/125,661.92 = 54,773.71/x
  3. Step 3: Cross multiply
    91,097.50x = 125,661.92 × 54,773.71
  4. Step 4: Simplify right side
    91,097.50x = 6,882,970,241.10
  5. Step 5: Solve for x
    x = 6,882,970,241.10/91,097.50
  6. Step 6: Final answer
    x = 75,556.08

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.