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Finding the Fourth Proportional to 83,042.91, 124,600.97 and 43,590.95

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Solution

The fourth proportional to 83,042.91, 124,600.97 and 43,590.95 is: 65,405.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,042.91 : 124,600.97 = 43,590.95 : x
  2. Step 2: Convert to fraction form
    83,042.91/124,600.97 = 43,590.95/x
  3. Step 3: Cross multiply
    83,042.91x = 124,600.97 × 43,590.95
  4. Step 4: Simplify right side
    83,042.91x = 5,431,474,653.22
  5. Step 5: Solve for x
    x = 5,431,474,653.22/83,042.91
  6. Step 6: Final answer
    x = 65,405.64

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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.