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Finding the Fourth Proportional to 232,891.70, 349,337.55 and 85,205.30

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Solution

The fourth proportional to 232,891.70, 349,337.55 and 85,205.30 is: 127,807.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    232,891.70 : 349,337.55 = 85,205.30 : x
  2. Step 2: Convert to fraction form
    232,891.70/349,337.55 = 85,205.30/x
  3. Step 3: Cross multiply
    232,891.70x = 349,337.55 × 85,205.30
  4. Step 4: Simplify right side
    232,891.70x = 29,765,410,749.02
  5. Step 5: Solve for x
    x = 29,765,410,749.02/232,891.70
  6. Step 6: Final answer
    x = 127,807.95

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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.