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Finding the Fourth Proportional to 146,651.20, 220,004.16 and 67,713.28

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Solution

The fourth proportional to 146,651.20, 220,004.16 and 67,713.28 is: 101,582.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    146,651.20 : 220,004.16 = 67,713.28 : x
  2. Step 2: Convert to fraction form
    146,651.20/220,004.16 = 67,713.28/x
  3. Step 3: Cross multiply
    146,651.20x = 220,004.16 × 67,713.28
  4. Step 4: Simplify right side
    146,651.20x = 14,897,203,287.24
  5. Step 5: Solve for x
    x = 14,897,203,287.24/146,651.20
  6. Step 6: Final answer
    x = 101,582.55

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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.