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Finding the Fourth Proportional to 144,578.93, 216,876.89 and 55,832.90

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Solution

The fourth proportional to 144,578.93, 216,876.89 and 55,832.90 is: 83,752.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,578.93 : 216,876.89 = 55,832.90 : x
  2. Step 2: Convert to fraction form
    144,578.93/216,876.89 = 55,832.90/x
  3. Step 3: Cross multiply
    144,578.93x = 216,876.89 × 55,832.90
  4. Step 4: Simplify right side
    144,578.93x = 12,108,864,766.88
  5. Step 5: Solve for x
    x = 12,108,864,766.88/144,578.93
  6. Step 6: Final answer
    x = 83,752.63

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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.