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Finding the Fourth Proportional to 72,937.92, 109,612.08 and 43,361.04

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Solution

The fourth proportional to 72,937.92, 109,612.08 and 43,361.04 is: 65,163.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,937.92 : 109,612.08 = 43,361.04 : x
  2. Step 2: Convert to fraction form
    72,937.92/109,612.08 = 43,361.04/x
  3. Step 3: Cross multiply
    72,937.92x = 109,612.08 × 43,361.04
  4. Step 4: Simplify right side
    72,937.92x = 4,752,893,785.36
  5. Step 5: Solve for x
    x = 4,752,893,785.36/72,937.92
  6. Step 6: Final answer
    x = 65,163.55

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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.