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Finding the Fourth Proportional to 316,691.01, 437,033.57 and 173,451.42

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Solution

The fourth proportional to 316,691.01, 437,033.57 and 173,451.42 is: 239,362.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    316,691.01 : 437,033.57 = 173,451.42 : x
  2. Step 2: Convert to fraction form
    316,691.01/437,033.57 = 173,451.42/x
  3. Step 3: Cross multiply
    316,691.01x = 437,033.57 × 173,451.42
  4. Step 4: Simplify right side
    316,691.01x = 75,804,092,436.91
  5. Step 5: Solve for x
    x = 75,804,092,436.91/316,691.01
  6. Step 6: Final answer
    x = 239,362.94

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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.