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Finding the Fourth Proportional to 84,343.91, 116,391.15 and 48,535.20

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Solution

The fourth proportional to 84,343.91, 116,391.15 and 48,535.20 is: 66,976.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,343.91 : 116,391.15 = 48,535.20 : x
  2. Step 2: Convert to fraction form
    84,343.91/116,391.15 = 48,535.20/x
  3. Step 3: Cross multiply
    84,343.91x = 116,391.15 × 48,535.20
  4. Step 4: Simplify right side
    84,343.91x = 5,649,067,743.48
  5. Step 5: Solve for x
    x = 5,649,067,743.48/84,343.91
  6. Step 6: Final answer
    x = 66,976.60

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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.