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Finding the Fourth Proportional to 120,167.57, 180,260.67 and 35,921.90

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Solution

The fourth proportional to 120,167.57, 180,260.67 and 35,921.90 is: 53,885.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,167.57 : 180,260.67 = 35,921.90 : x
  2. Step 2: Convert to fraction form
    120,167.57/180,260.67 = 35,921.90/x
  3. Step 3: Cross multiply
    120,167.57x = 180,260.67 × 35,921.90
  4. Step 4: Simplify right side
    120,167.57x = 6,475,305,761.67
  5. Step 5: Solve for x
    x = 6,475,305,761.67/120,167.57
  6. Step 6: Final answer
    x = 53,885.63

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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.