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Finding the Fourth Proportional to 218,358.10, 327,552.27 and 85,194.10

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Solution

The fourth proportional to 218,358.10, 327,552.27 and 85,194.10 is: 127,797.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,358.10 : 327,552.27 = 85,194.10 : x
  2. Step 2: Convert to fraction form
    218,358.10/327,552.27 = 85,194.10/x
  3. Step 3: Cross multiply
    218,358.10x = 327,552.27 × 85,194.10
  4. Step 4: Simplify right side
    218,358.10x = 27,905,520,845.61
  5. Step 5: Solve for x
    x = 27,905,520,845.61/218,358.10
  6. Step 6: Final answer
    x = 127,797.05

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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.