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Finding the Fourth Proportional to 117,371.33, 176,012.78 and 42,472.95

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Solution

The fourth proportional to 117,371.33, 176,012.78 and 42,472.95 is: 63,693.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,371.33 : 176,012.78 = 42,472.95 : x
  2. Step 2: Convert to fraction form
    117,371.33/176,012.78 = 42,472.95/x
  3. Step 3: Cross multiply
    117,371.33x = 176,012.78 × 42,472.95
  4. Step 4: Simplify right side
    117,371.33x = 7,475,781,791.94
  5. Step 5: Solve for x
    x = 7,475,781,791.94/117,371.33
  6. Step 6: Final answer
    x = 63,693.43

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.