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Finding the Fourth Proportional to 83,381.59, 115,067.96 and 45,653.41

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Solution

The fourth proportional to 83,381.59, 115,067.96 and 45,653.41 is: 63,002.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,381.59 : 115,067.96 = 45,653.41 : x
  2. Step 2: Convert to fraction form
    83,381.59/115,067.96 = 45,653.41/x
  3. Step 3: Cross multiply
    83,381.59x = 115,067.96 × 45,653.41
  4. Step 4: Simplify right side
    83,381.59x = 5,253,244,755.74
  5. Step 5: Solve for x
    x = 5,253,244,755.74/83,381.59
  6. Step 6: Final answer
    x = 63,002.45

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1.5x scale

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.