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Finding the Fourth Proportional to 83,546.80, 115,295.48 and 45,306.42

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Solution

The fourth proportional to 83,546.80, 115,295.48 and 45,306.42 is: 62,523.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,546.80 : 115,295.48 = 45,306.42 : x
  2. Step 2: Convert to fraction form
    83,546.80/115,295.48 = 45,306.42/x
  3. Step 3: Cross multiply
    83,546.80x = 115,295.48 × 45,306.42
  4. Step 4: Simplify right side
    83,546.80x = 5,223,625,986.61
  5. Step 5: Solve for x
    x = 5,223,625,986.61/83,546.80
  6. Step 6: Final answer
    x = 62,523.35

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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.