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Finding the Fourth Proportional to 229,379.18, 316,563.24 and 127,424.48

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Solution

The fourth proportional to 229,379.18, 316,563.24 and 127,424.48 is: 175,856.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    229,379.18 : 316,563.24 = 127,424.48 : x
  2. Step 2: Convert to fraction form
    229,379.18/316,563.24 = 127,424.48/x
  3. Step 3: Cross multiply
    229,379.18x = 316,563.24 × 127,424.48
  4. Step 4: Simplify right side
    229,379.18x = 40,337,906,244.12
  5. Step 5: Solve for x
    x = 40,337,906,244.12/229,379.18
  6. Step 6: Final answer
    x = 175,856.88

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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.