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Finding the Fourth Proportional to 80,957.68, 111,752.34 and 60,872.88

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Solution

The fourth proportional to 80,957.68, 111,752.34 and 60,872.88 is: 84,027.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,957.68 : 111,752.34 = 60,872.88 : x
  2. Step 2: Convert to fraction form
    80,957.68/111,752.34 = 60,872.88/x
  3. Step 3: Cross multiply
    80,957.68x = 111,752.34 × 60,872.88
  4. Step 4: Simplify right side
    80,957.68x = 6,802,686,782.54
  5. Step 5: Solve for x
    x = 6,802,686,782.54/80,957.68
  6. Step 6: Final answer
    x = 84,027.69

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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.