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Finding the Fourth Proportional to 108,847, 163,221.24 and 38,728.16

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Solution

The fourth proportional to 108,847, 163,221.24 and 38,728.16 is: 58,074.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,847 : 163,221.24 = 38,728.16 : x
  2. Step 2: Convert to fraction form
    108,847/163,221.24 = 38,728.16/x
  3. Step 3: Cross multiply
    108,847x = 163,221.24 × 38,728.16
  4. Step 4: Simplify right side
    108,847x = 6,321,258,298.12
  5. Step 5: Solve for x
    x = 6,321,258,298.12/108,847
  6. Step 6: Final answer
    x = 58,074.71

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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.