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Finding the Fourth Proportional to 91,382.42, 136,932.26 and 63,357.23

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Solution

The fourth proportional to 91,382.42, 136,932.26 and 63,357.23 is: 94,937.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,382.42 : 136,932.26 = 63,357.23 : x
  2. Step 2: Convert to fraction form
    91,382.42/136,932.26 = 63,357.23/x
  3. Step 3: Cross multiply
    91,382.42x = 136,932.26 × 63,357.23
  4. Step 4: Simplify right side
    91,382.42x = 8,675,648,716.78
  5. Step 5: Solve for x
    x = 8,675,648,716.78/91,382.42
  6. Step 6: Final answer
    x = 94,937.83

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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.