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Finding the Fourth Proportional to 229,489.76, 316,605.12 and 132,675.79

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Solution

The fourth proportional to 229,489.76, 316,605.12 and 132,675.79 is: 183,040.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    229,489.76 : 316,605.12 = 132,675.79 : x
  2. Step 2: Convert to fraction form
    229,489.76/316,605.12 = 132,675.79/x
  3. Step 3: Cross multiply
    229,489.76x = 316,605.12 × 132,675.79
  4. Step 4: Simplify right side
    229,489.76x = 42,005,834,414.04
  5. Step 5: Solve for x
    x = 42,005,834,414.04/229,489.76
  6. Step 6: Final answer
    x = 183,040.13

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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.