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Finding the Fourth Proportional to 80,737.80, 111,449.16 and 60,652.94

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Solution

The fourth proportional to 80,737.80, 111,449.16 and 60,652.94 is: 83,724.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,737.80 : 111,449.16 = 60,652.94 : x
  2. Step 2: Convert to fraction form
    80,737.80/111,449.16 = 60,652.94/x
  3. Step 3: Cross multiply
    80,737.80x = 111,449.16 × 60,652.94
  4. Step 4: Simplify right side
    80,737.80x = 6,759,719,214.53
  5. Step 5: Solve for x
    x = 6,759,719,214.53/80,737.80
  6. Step 6: Final answer
    x = 83,724.34

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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.