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Finding the Fourth Proportional to 108,604.20, 162,906.30 and 73,174.80

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Solution

The fourth proportional to 108,604.20, 162,906.30 and 73,174.80 is: 109,762.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,604.20 : 162,906.30 = 73,174.80 : x
  2. Step 2: Convert to fraction form
    108,604.20/162,906.30 = 73,174.80/x
  3. Step 3: Cross multiply
    108,604.20x = 162,906.30 × 73,174.80
  4. Step 4: Simplify right side
    108,604.20x = 11,920,635,921.24
  5. Step 5: Solve for x
    x = 11,920,635,921.24/108,604.20
  6. Step 6: Final answer
    x = 109,762.20

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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.