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Finding the Fourth Proportional to 144,759.16, 217,151.70 and 39,578.68

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Solution

The fourth proportional to 144,759.16, 217,151.70 and 39,578.68 is: 59,371.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,759.16 : 217,151.70 = 39,578.68 : x
  2. Step 2: Convert to fraction form
    144,759.16/217,151.70 = 39,578.68/x
  3. Step 3: Cross multiply
    144,759.16x = 217,151.70 × 39,578.68
  4. Step 4: Simplify right side
    144,759.16x = 8,594,577,645.76
  5. Step 5: Solve for x
    x = 8,594,577,645.76/144,759.16
  6. Step 6: Final answer
    x = 59,371.56

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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.