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Finding the Fourth Proportional to 169,933.20, 254,891.70 and 57,602.40

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Solution

The fourth proportional to 169,933.20, 254,891.70 and 57,602.40 is: 86,400.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    169,933.20 : 254,891.70 = 57,602.40 : x
  2. Step 2: Convert to fraction form
    169,933.20/254,891.70 = 57,602.40/x
  3. Step 3: Cross multiply
    169,933.20x = 254,891.70 × 57,602.40
  4. Step 4: Simplify right side
    169,933.20x = 14,682,373,660.08
  5. Step 5: Solve for x
    x = 14,682,373,660.08/169,933.20
  6. Step 6: Final answer
    x = 86,400.85

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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.