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Finding the Fourth Proportional to 235,521.52, 353,376.66 and 85,772.24

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Solution

The fourth proportional to 235,521.52, 353,376.66 and 85,772.24 is: 128,692.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    235,521.52 : 353,376.66 = 85,772.24 : x
  2. Step 2: Convert to fraction form
    235,521.52/353,376.66 = 85,772.24/x
  3. Step 3: Cross multiply
    235,521.52x = 353,376.66 × 85,772.24
  4. Step 4: Simplify right side
    235,521.52x = 30,309,907,691.92
  5. Step 5: Solve for x
    x = 30,309,907,691.92/235,521.52
  6. Step 6: Final answer
    x = 128,692.73

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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.