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Finding the Fourth Proportional to 91,681.86, 137,569.50 and 44,337.36

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Solution

The fourth proportional to 91,681.86, 137,569.50 and 44,337.36 is: 66,528.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,681.86 : 137,569.50 = 44,337.36 : x
  2. Step 2: Convert to fraction form
    91,681.86/137,569.50 = 44,337.36/x
  3. Step 3: Cross multiply
    91,681.86x = 137,569.50 × 44,337.36
  4. Step 4: Simplify right side
    91,681.86x = 6,099,468,446.52
  5. Step 5: Solve for x
    x = 6,099,468,446.52/91,681.86
  6. Step 6: Final answer
    x = 66,528.63

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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.