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Finding the Fourth Proportional to 220,226.65, 303,900.96 and 124,731.29

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Solution

The fourth proportional to 220,226.65, 303,900.96 and 124,731.29 is: 172,122.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,226.65 : 303,900.96 = 124,731.29 : x
  2. Step 2: Convert to fraction form
    220,226.65/303,900.96 = 124,731.29/x
  3. Step 3: Cross multiply
    220,226.65x = 303,900.96 × 124,731.29
  4. Step 4: Simplify right side
    220,226.65x = 37,905,960,000.53
  5. Step 5: Solve for x
    x = 37,905,960,000.53/220,226.65
  6. Step 6: Final answer
    x = 172,122.49

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.