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Finding the Fourth Proportional to 108,032.80, 162,049.20 and 55,447.60

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Solution

The fourth proportional to 108,032.80, 162,049.20 and 55,447.60 is: 83,171.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,032.80 : 162,049.20 = 55,447.60 : x
  2. Step 2: Convert to fraction form
    108,032.80/162,049.20 = 55,447.60/x
  3. Step 3: Cross multiply
    108,032.80x = 162,049.20 × 55,447.60
  4. Step 4: Simplify right side
    108,032.80x = 8,985,239,221.92
  5. Step 5: Solve for x
    x = 8,985,239,221.92/108,032.80
  6. Step 6: Final answer
    x = 83,171.40

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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.