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Finding the Fourth Proportional to 91,901.88, 137,880.51 and 32,729.85

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Solution

The fourth proportional to 91,901.88, 137,880.51 and 32,729.85 is: 49,104.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,901.88 : 137,880.51 = 32,729.85 : x
  2. Step 2: Convert to fraction form
    91,901.88/137,880.51 = 32,729.85/x
  3. Step 3: Cross multiply
    91,901.88x = 137,880.51 × 32,729.85
  4. Step 4: Simplify right side
    91,901.88x = 4,512,808,287.49
  5. Step 5: Solve for x
    x = 4,512,808,287.49/91,901.88
  6. Step 6: Final answer
    x = 49,104.64

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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.