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Finding the Fourth Proportional to 168,631.70, 252,947.55 and 43,972.70

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Solution

The fourth proportional to 168,631.70, 252,947.55 and 43,972.70 is: 65,959.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,631.70 : 252,947.55 = 43,972.70 : x
  2. Step 2: Convert to fraction form
    168,631.70/252,947.55 = 43,972.70/x
  3. Step 3: Cross multiply
    168,631.70x = 252,947.55 × 43,972.70
  4. Step 4: Simplify right side
    168,631.70x = 11,122,786,731.89
  5. Step 5: Solve for x
    x = 11,122,786,731.89/168,631.70
  6. Step 6: Final answer
    x = 65,959.05

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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.