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Finding the Fourth Proportional to 144,069.87, 198,578.46 and 96,305.79

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Solution

The fourth proportional to 144,069.87, 198,578.46 and 96,305.79 is: 132,742.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,069.87 : 198,578.46 = 96,305.79 : x
  2. Step 2: Convert to fraction form
    144,069.87/198,578.46 = 96,305.79/x
  3. Step 3: Cross multiply
    144,069.87x = 198,578.46 × 96,305.79
  4. Step 4: Simplify right side
    144,069.87x = 19,124,255,467.28
  5. Step 5: Solve for x
    x = 19,124,255,467.28/144,069.87
  6. Step 6: Final answer
    x = 132,742.92

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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.