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Finding the Fourth Proportional to 109,874.40, 164,374.20 and 95,245.80

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Solution

The fourth proportional to 109,874.40, 164,374.20 and 95,245.80 is: 142,489.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,874.40 : 164,374.20 = 95,245.80 : x
  2. Step 2: Convert to fraction form
    109,874.40/164,374.20 = 95,245.80/x
  3. Step 3: Cross multiply
    109,874.40x = 164,374.20 × 95,245.80
  4. Step 4: Simplify right side
    109,874.40x = 15,655,952,178.36
  5. Step 5: Solve for x
    x = 15,655,952,178.36/109,874.40
  6. Step 6: Final answer
    x = 142,489.54

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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.