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Finding the Fourth Proportional to 115,372.65, 173,077.28 and 48,813.28

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Solution

The fourth proportional to 115,372.65, 173,077.28 and 48,813.28 is: 73,227.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,372.65 : 173,077.28 = 48,813.28 : x
  2. Step 2: Convert to fraction form
    115,372.65/173,077.28 = 48,813.28/x
  3. Step 3: Cross multiply
    115,372.65x = 173,077.28 × 48,813.28
  4. Step 4: Simplify right side
    115,372.65x = 8,448,469,885.61
  5. Step 5: Solve for x
    x = 8,448,469,885.61/115,372.65
  6. Step 6: Final answer
    x = 73,227.66

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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.