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Finding the Fourth Proportional to 144,357.67, 216,532.86 and 39,173.91

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Solution

The fourth proportional to 144,357.67, 216,532.86 and 39,173.91 is: 58,759.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,357.67 : 216,532.86 = 39,173.91 : x
  2. Step 2: Convert to fraction form
    144,357.67/216,532.86 = 39,173.91/x
  3. Step 3: Cross multiply
    144,357.67x = 216,532.86 × 39,173.91
  4. Step 4: Simplify right side
    144,357.67x = 8,482,438,769.68
  5. Step 5: Solve for x
    x = 8,482,438,769.68/144,357.67
  6. Step 6: Final answer
    x = 58,759.88

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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.