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Finding the Fourth Proportional to 263,392.92, 363,479.46 and 142,531.56

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Solution

The fourth proportional to 263,392.92, 363,479.46 and 142,531.56 is: 196,692.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    263,392.92 : 363,479.46 = 142,531.56 : x
  2. Step 2: Convert to fraction form
    263,392.92/363,479.46 = 142,531.56/x
  3. Step 3: Cross multiply
    263,392.92x = 363,479.46 × 142,531.56
  4. Step 4: Simplify right side
    263,392.92x = 51,807,294,461.76
  5. Step 5: Solve for x
    x = 51,807,294,461.76/263,392.92
  6. Step 6: Final answer
    x = 196,692.05

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.