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Finding the Fourth Proportional to 80,754.52, 121,195.28 and 55,968.84

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Solution

The fourth proportional to 80,754.52, 121,195.28 and 55,968.84 is: 83,997.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,754.52 : 121,195.28 = 55,968.84 : x
  2. Step 2: Convert to fraction form
    80,754.52/121,195.28 = 55,968.84/x
  3. Step 3: Cross multiply
    80,754.52x = 121,195.28 × 55,968.84
  4. Step 4: Simplify right side
    80,754.52x = 6,783,159,235.08
  5. Step 5: Solve for x
    x = 6,783,159,235.08/80,754.52
  6. Step 6: Final answer
    x = 83,997.27

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.