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Finding the Fourth Proportional to 169,362.39, 254,043.78 and 57,033.20

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Solution

The fourth proportional to 169,362.39, 254,043.78 and 57,033.20 is: 85,549.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    169,362.39 : 254,043.78 = 57,033.20 : x
  2. Step 2: Convert to fraction form
    169,362.39/254,043.78 = 57,033.20/x
  3. Step 3: Cross multiply
    169,362.39x = 254,043.78 × 57,033.20
  4. Step 4: Simplify right side
    169,362.39x = 14,488,929,713.50
  5. Step 5: Solve for x
    x = 14,488,929,713.50/169,362.39
  6. Step 6: Final answer
    x = 85,549.87

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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.