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Finding the Fourth Proportional to 185,855.44, 278,741.13 and 85,960.82

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Solution

The fourth proportional to 185,855.44, 278,741.13 and 85,960.82 is: 128,921.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,855.44 : 278,741.13 = 85,960.82 : x
  2. Step 2: Convert to fraction form
    185,855.44/278,741.13 = 85,960.82/x
  3. Step 3: Cross multiply
    185,855.44x = 278,741.13 × 85,960.82
  4. Step 4: Simplify right side
    185,855.44x = 23,960,816,102.53
  5. Step 5: Solve for x
    x = 23,960,816,102.53/185,855.44
  6. Step 6: Final answer
    x = 128,921.79

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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.