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Finding the Fourth Proportional to 87,192.99, 130,839.71 and 49,272.30

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Solution

The fourth proportional to 87,192.99, 130,839.71 and 49,272.30 is: 73,936.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,192.99 : 130,839.71 = 49,272.30 : x
  2. Step 2: Convert to fraction form
    87,192.99/130,839.71 = 49,272.30/x
  3. Step 3: Cross multiply
    87,192.99x = 130,839.71 × 49,272.30
  4. Step 4: Simplify right side
    87,192.99x = 6,446,773,196.67
  5. Step 5: Solve for x
    x = 6,446,773,196.67/87,192.99
  6. Step 6: Final answer
    x = 73,936.83

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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.