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Finding the Fourth Proportional to 83,362.88, 125,044.52 and 21,033.38

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Solution

The fourth proportional to 83,362.88, 125,044.52 and 21,033.38 is: 31,550.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,362.88 : 125,044.52 = 21,033.38 : x
  2. Step 2: Convert to fraction form
    83,362.88/125,044.52 = 21,033.38/x
  3. Step 3: Cross multiply
    83,362.88x = 125,044.52 × 21,033.38
  4. Step 4: Simplify right side
    83,362.88x = 2,630,108,175.69
  5. Step 5: Solve for x
    x = 2,630,108,175.69/83,362.88
  6. Step 6: Final answer
    x = 31,550.11

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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.