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Finding the Fourth Proportional to 235,452.60, 353,335.95 and 85,692.85

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Solution

The fourth proportional to 235,452.60, 353,335.95 and 85,692.85 is: 128,596.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    235,452.60 : 353,335.95 = 85,692.85 : x
  2. Step 2: Convert to fraction form
    235,452.60/353,335.95 = 85,692.85/x
  3. Step 3: Cross multiply
    235,452.60x = 353,335.95 × 85,692.85
  4. Step 4: Simplify right side
    235,452.60x = 30,278,364,562.96
  5. Step 5: Solve for x
    x = 30,278,364,562.96/235,452.60
  6. Step 6: Final answer
    x = 128,596.43

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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.