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Finding the Fourth Proportional to 87,510.88, 120,763.00 and 53,519.74

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Solution

The fourth proportional to 87,510.88, 120,763.00 and 53,519.74 is: 73,856.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,510.88 : 120,763.00 = 53,519.74 : x
  2. Step 2: Convert to fraction form
    87,510.88/120,763.00 = 53,519.74/x
  3. Step 3: Cross multiply
    87,510.88x = 120,763.00 × 53,519.74
  4. Step 4: Simplify right side
    87,510.88x = 6,463,204,126.61
  5. Step 5: Solve for x
    x = 6,463,204,126.61/87,510.88
  6. Step 6: Final answer
    x = 73,856.01

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.