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Finding the Fourth Proportional to 169,843.28, 254,765.52 and 51,515.64

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Solution

The fourth proportional to 169,843.28, 254,765.52 and 51,515.64 is: 77,273.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    169,843.28 : 254,765.52 = 51,515.64 : x
  2. Step 2: Convert to fraction form
    169,843.28/254,765.52 = 51,515.64/x
  3. Step 3: Cross multiply
    169,843.28x = 254,765.52 × 51,515.64
  4. Step 4: Simplify right side
    169,843.28x = 13,124,408,812.73
  5. Step 5: Solve for x
    x = 13,124,408,812.73/169,843.28
  6. Step 6: Final answer
    x = 77,273.64

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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.