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Finding the Fourth Proportional to 235,451.60, 353,334.45 and 85,691.85

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Solution

The fourth proportional to 235,451.60, 353,334.45 and 85,691.85 is: 128,594.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    235,451.60 : 353,334.45 = 85,691.85 : x
  2. Step 2: Convert to fraction form
    235,451.60/353,334.45 = 85,691.85/x
  3. Step 3: Cross multiply
    235,451.60x = 353,334.45 × 85,691.85
  4. Step 4: Simplify right side
    235,451.60x = 30,277,882,260.77
  5. Step 5: Solve for x
    x = 30,277,882,260.77/235,451.60
  6. Step 6: Final answer
    x = 128,594.93

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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.