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Finding the Fourth Proportional to 82,169.62, 113,393.85 and 44,443.78

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Solution

The fourth proportional to 82,169.62, 113,393.85 and 44,443.78 is: 61,332.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,169.62 : 113,393.85 = 44,443.78 : x
  2. Step 2: Convert to fraction form
    82,169.62/113,393.85 = 44,443.78/x
  3. Step 3: Cross multiply
    82,169.62x = 113,393.85 × 44,443.78
  4. Step 4: Simplify right side
    82,169.62x = 5,039,651,322.75
  5. Step 5: Solve for x
    x = 5,039,651,322.75/82,169.62
  6. Step 6: Final answer
    x = 61,332.29

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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.