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Finding the Fourth Proportional to 83,369.52, 115,049.97 and 45,643.77

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Solution

The fourth proportional to 83,369.52, 115,049.97 and 45,643.77 is: 62,988.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,369.52 : 115,049.97 = 45,643.77 : x
  2. Step 2: Convert to fraction form
    83,369.52/115,049.97 = 45,643.77/x
  3. Step 3: Cross multiply
    83,369.52x = 115,049.97 × 45,643.77
  4. Step 4: Simplify right side
    83,369.52x = 5,251,314,369.19
  5. Step 5: Solve for x
    x = 5,251,314,369.19/83,369.52
  6. Step 6: Final answer
    x = 62,988.42

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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.