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Finding the Fourth Proportional to 108,080.20, 162,023.10 and 70,658.20

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Solution

The fourth proportional to 108,080.20, 162,023.10 and 70,658.20 is: 105,923.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,080.20 : 162,023.10 = 70,658.20 : x
  2. Step 2: Convert to fraction form
    108,080.20/162,023.10 = 70,658.20/x
  3. Step 3: Cross multiply
    108,080.20x = 162,023.10 × 70,658.20
  4. Step 4: Simplify right side
    108,080.20x = 11,448,260,604.42
  5. Step 5: Solve for x
    x = 11,448,260,604.42/108,080.20
  6. Step 6: Final answer
    x = 105,923.75

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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.