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Finding the Fourth Proportional to 83,468.32, 115,150.08 and 55,213.44

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Solution

The fourth proportional to 83,468.32, 115,150.08 and 55,213.44 is: 76,170.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,468.32 : 115,150.08 = 55,213.44 : x
  2. Step 2: Convert to fraction form
    83,468.32/115,150.08 = 55,213.44/x
  3. Step 3: Cross multiply
    83,468.32x = 115,150.08 × 55,213.44
  4. Step 4: Simplify right side
    83,468.32x = 6,357,832,033.08
  5. Step 5: Solve for x
    x = 6,357,832,033.08/83,468.32
  6. Step 6: Final answer
    x = 76,170.60

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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.