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Finding the Fourth Proportional to 157,304.25, 217,042.20 and 91,882.98

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Solution

The fourth proportional to 157,304.25, 217,042.20 and 91,882.98 is: 126,776.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,304.25 : 217,042.20 = 91,882.98 : x
  2. Step 2: Convert to fraction form
    157,304.25/217,042.20 = 91,882.98/x
  3. Step 3: Cross multiply
    157,304.25x = 217,042.20 × 91,882.98
  4. Step 4: Simplify right side
    157,304.25x = 19,942,484,121.76
  5. Step 5: Solve for x
    x = 19,942,484,121.76/157,304.25
  6. Step 6: Final answer
    x = 126,776.51

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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.