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Finding the Fourth Proportional to 87,225.80, 130,838.70 and 52,233.80

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Solution

The fourth proportional to 87,225.80, 130,838.70 and 52,233.80 is: 78,350.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,225.80 : 130,838.70 = 52,233.80 : x
  2. Step 2: Convert to fraction form
    87,225.80/130,838.70 = 52,233.80/x
  3. Step 3: Cross multiply
    87,225.80x = 130,838.70 × 52,233.80
  4. Step 4: Simplify right side
    87,225.80x = 6,834,202,488.06
  5. Step 5: Solve for x
    x = 6,834,202,488.06/87,225.80
  6. Step 6: Final answer
    x = 78,350.70

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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.