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Finding the Fourth Proportional to 355,081.80, 532,169.10 and 144,481.80

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Solution

The fourth proportional to 355,081.80, 532,169.10 and 144,481.80 is: 216,538.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    355,081.80 : 532,169.10 = 144,481.80 : x
  2. Step 2: Convert to fraction form
    355,081.80/532,169.10 = 144,481.80/x
  3. Step 3: Cross multiply
    355,081.80x = 532,169.10 × 144,481.80
  4. Step 4: Simplify right side
    355,081.80x = 76,888,749,472.38
  5. Step 5: Solve for x
    x = 76,888,749,472.38/355,081.80
  6. Step 6: Final answer
    x = 216,538.13

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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.