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Finding the Fourth Proportional to 356,640.14, 535,042.20 and 116,761.76

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Solution

The fourth proportional to 356,640.14, 535,042.20 and 116,761.76 is: 175,169.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    356,640.14 : 535,042.20 = 116,761.76 : x
  2. Step 2: Convert to fraction form
    356,640.14/535,042.20 = 116,761.76/x
  3. Step 3: Cross multiply
    356,640.14x = 535,042.20 × 116,761.76
  4. Step 4: Simplify right side
    356,640.14x = 62,472,468,946.27
  5. Step 5: Solve for x
    x = 62,472,468,946.27/356,640.14
  6. Step 6: Final answer
    x = 175,169.48

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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.