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Finding the Fourth Proportional to 225,276.76, 337,926.36 and 67,490.20

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Solution

The fourth proportional to 225,276.76, 337,926.36 and 67,490.20 is: 101,238.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    225,276.76 : 337,926.36 = 67,490.20 : x
  2. Step 2: Convert to fraction form
    225,276.76/337,926.36 = 67,490.20/x
  3. Step 3: Cross multiply
    225,276.76x = 337,926.36 × 67,490.20
  4. Step 4: Simplify right side
    225,276.76x = 22,806,717,621.67
  5. Step 5: Solve for x
    x = 22,806,717,621.67/225,276.76
  6. Step 6: Final answer
    x = 101,238.66

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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.