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Finding the Fourth Proportional to 144,481.24, 216,721.86 and 39,300.76

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Solution

The fourth proportional to 144,481.24, 216,721.86 and 39,300.76 is: 58,951.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,481.24 : 216,721.86 = 39,300.76 : x
  2. Step 2: Convert to fraction form
    144,481.24/216,721.86 = 39,300.76/x
  3. Step 3: Cross multiply
    144,481.24x = 216,721.86 × 39,300.76
  4. Step 4: Simplify right side
    144,481.24x = 8,517,333,806.61
  5. Step 5: Solve for x
    x = 8,517,333,806.61/144,481.24
  6. Step 6: Final answer
    x = 58,951.14

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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.