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Finding the Fourth Proportional to 185,790.60, 278,685.90 and 110,995.20

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Solution

The fourth proportional to 185,790.60, 278,685.90 and 110,995.20 is: 166,492.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,790.60 : 278,685.90 = 110,995.20 : x
  2. Step 2: Convert to fraction form
    185,790.60/278,685.90 = 110,995.20/x
  3. Step 3: Cross multiply
    185,790.60x = 278,685.90 × 110,995.20
  4. Step 4: Simplify right side
    185,790.60x = 30,932,797,207.68
  5. Step 5: Solve for x
    x = 30,932,797,207.68/185,790.60
  6. Step 6: Final answer
    x = 166,492.80

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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.