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Finding the Fourth Proportional to 79,398.20, 119,000.10 and 34,977.80

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Solution

The fourth proportional to 79,398.20, 119,000.10 and 34,977.80 is: 52,423.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,398.20 : 119,000.10 = 34,977.80 : x
  2. Step 2: Convert to fraction form
    79,398.20/119,000.10 = 34,977.80/x
  3. Step 3: Cross multiply
    79,398.20x = 119,000.10 × 34,977.80
  4. Step 4: Simplify right side
    79,398.20x = 4,162,361,697.78
  5. Step 5: Solve for x
    x = 4,162,361,697.78/79,398.20
  6. Step 6: Final answer
    x = 52,423.88

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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.