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Finding the Fourth Proportional to 60,292.80, 90,350.10 and 43,687.80

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Solution

The fourth proportional to 60,292.80, 90,350.10 and 43,687.80 is: 65,467.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,292.80 : 90,350.10 = 43,687.80 : x
  2. Step 2: Convert to fraction form
    60,292.80/90,350.10 = 43,687.80/x
  3. Step 3: Cross multiply
    60,292.80x = 90,350.10 × 43,687.80
  4. Step 4: Simplify right side
    60,292.80x = 3,947,197,098.78
  5. Step 5: Solve for x
    x = 3,947,197,098.78/60,292.80
  6. Step 6: Final answer
    x = 65,467.14

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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.