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Finding the Fourth Proportional to 185,857.44, 278,744.12 and 85,962.82

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Solution

The fourth proportional to 185,857.44, 278,744.12 and 85,962.82 is: 128,924.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,857.44 : 278,744.12 = 85,962.82 : x
  2. Step 2: Convert to fraction form
    185,857.44/278,744.12 = 85,962.82/x
  3. Step 3: Cross multiply
    185,857.44x = 278,744.12 × 85,962.82
  4. Step 4: Simplify right side
    185,857.44x = 23,961,630,613.62
  5. Step 5: Solve for x
    x = 23,961,630,613.62/185,857.44
  6. Step 6: Final answer
    x = 128,924.79

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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.