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Finding the Fourth Proportional to 100,859.20, 151,288.80 and 41,737.30

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Solution

The fourth proportional to 100,859.20, 151,288.80 and 41,737.30 is: 62,605.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,859.20 : 151,288.80 = 41,737.30 : x
  2. Step 2: Convert to fraction form
    100,859.20/151,288.80 = 41,737.30/x
  3. Step 3: Cross multiply
    100,859.20x = 151,288.80 × 41,737.30
  4. Step 4: Simplify right side
    100,859.20x = 6,314,386,032.24
  5. Step 5: Solve for x
    x = 6,314,386,032.24/100,859.20
  6. Step 6: Final answer
    x = 62,605.95

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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.