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Finding the Fourth Proportional to 229,604.33, 316,857.76 and 126,242.90

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Solution

The fourth proportional to 229,604.33, 316,857.76 and 126,242.90 is: 174,217.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    229,604.33 : 316,857.76 = 126,242.90 : x
  2. Step 2: Convert to fraction form
    229,604.33/316,857.76 = 126,242.90/x
  3. Step 3: Cross multiply
    229,604.33x = 316,857.76 × 126,242.90
  4. Step 4: Simplify right side
    229,604.33x = 40,001,040,610.01
  5. Step 5: Solve for x
    x = 40,001,040,610.01/229,604.33
  6. Step 6: Final answer
    x = 174,217.27

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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.