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Finding the Fourth Proportional to 169,959.20, 254,930.70 and 57,628.40

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Solution

The fourth proportional to 169,959.20, 254,930.70 and 57,628.40 is: 86,439.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    169,959.20 : 254,930.70 = 57,628.40 : x
  2. Step 2: Convert to fraction form
    169,959.20/254,930.70 = 57,628.40/x
  3. Step 3: Cross multiply
    169,959.20x = 254,930.70 × 57,628.40
  4. Step 4: Simplify right side
    169,959.20x = 14,691,248,351.88
  5. Step 5: Solve for x
    x = 14,691,248,351.88/169,959.20
  6. Step 6: Final answer
    x = 86,439.85

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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.