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Finding the Fourth Proportional to 250,731.38, 376,079.43 and 117,640.82

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Solution

The fourth proportional to 250,731.38, 376,079.43 and 117,640.82 is: 176,452.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    250,731.38 : 376,079.43 = 117,640.82 : x
  2. Step 2: Convert to fraction form
    250,731.38/376,079.43 = 117,640.82/x
  3. Step 3: Cross multiply
    250,731.38x = 376,079.43 × 117,640.82
  4. Step 4: Simplify right side
    250,731.38x = 44,242,292,530.33
  5. Step 5: Solve for x
    x = 44,242,292,530.33/250,731.38
  6. Step 6: Final answer
    x = 176,452.95

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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.