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Finding the Fourth Proportional to 240,151.87, 331,409.98 and 132,721.88

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Solution

The fourth proportional to 240,151.87, 331,409.98 and 132,721.88 is: 183,156.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    240,151.87 : 331,409.98 = 132,721.88 : x
  2. Step 2: Convert to fraction form
    240,151.87/331,409.98 = 132,721.88/x
  3. Step 3: Cross multiply
    240,151.87x = 331,409.98 × 132,721.88
  4. Step 4: Simplify right side
    240,151.87x = 43,985,354,105.21
  5. Step 5: Solve for x
    x = 43,985,354,105.21/240,151.87
  6. Step 6: Final answer
    x = 183,156.41

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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.