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Finding the Fourth Proportional to 108,546.80, 162,820.20 and 38,433.20

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Solution

The fourth proportional to 108,546.80, 162,820.20 and 38,433.20 is: 57,649.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,546.80 : 162,820.20 = 38,433.20 : x
  2. Step 2: Convert to fraction form
    108,546.80/162,820.20 = 38,433.20/x
  3. Step 3: Cross multiply
    108,546.80x = 162,820.20 × 38,433.20
  4. Step 4: Simplify right side
    108,546.80x = 6,257,701,310.64
  5. Step 5: Solve for x
    x = 6,257,701,310.64/108,546.80
  6. Step 6: Final answer
    x = 57,649.80

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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.