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Finding the Fourth Proportional to 240,071.75, 331,305.70 and 132,648.71

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Solution

The fourth proportional to 240,071.75, 331,305.70 and 132,648.71 is: 183,058.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    240,071.75 : 331,305.70 = 132,648.71 : x
  2. Step 2: Convert to fraction form
    240,071.75/331,305.70 = 132,648.71/x
  3. Step 3: Cross multiply
    240,071.75x = 331,305.70 × 132,648.71
  4. Step 4: Simplify right side
    240,071.75x = 43,947,272,064.12
  5. Step 5: Solve for x
    x = 43,947,272,064.12/240,071.75
  6. Step 6: Final answer
    x = 183,058.91

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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.