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Finding the Fourth Proportional to 185,797.20, 278,695.80 and 156,928.80

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Solution

The fourth proportional to 185,797.20, 278,695.80 and 156,928.80 is: 235,393.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,797.20 : 278,695.80 = 156,928.80 : x
  2. Step 2: Convert to fraction form
    185,797.20/278,695.80 = 156,928.80/x
  3. Step 3: Cross multiply
    185,797.20x = 278,695.80 × 156,928.80
  4. Step 4: Simplify right side
    185,797.20x = 43,735,397,459.04
  5. Step 5: Solve for x
    x = 43,735,397,459.04/185,797.20
  6. Step 6: Final answer
    x = 235,393.20

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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.