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Finding the Fourth Proportional to 144,641.72, 216,976.85 and 49,859.42

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Solution

The fourth proportional to 144,641.72, 216,976.85 and 49,859.42 is: 74,794.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,641.72 : 216,976.85 = 49,859.42 : x
  2. Step 2: Convert to fraction form
    144,641.72/216,976.85 = 49,859.42/x
  3. Step 3: Cross multiply
    144,641.72x = 216,976.85 × 49,859.42
  4. Step 4: Simplify right side
    144,641.72x = 10,818,340,778.44
  5. Step 5: Solve for x
    x = 10,818,340,778.44/144,641.72
  6. Step 6: Final answer
    x = 74,794.06

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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.