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Finding the Fourth Proportional to 169,886.87, 254,671.79 and 57,488.88

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Solution

The fourth proportional to 169,886.87, 254,671.79 and 57,488.88 is: 86,179.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    169,886.87 : 254,671.79 = 57,488.88 : x
  2. Step 2: Convert to fraction form
    169,886.87/254,671.79 = 57,488.88/x
  3. Step 3: Cross multiply
    169,886.87x = 254,671.79 × 57,488.88
  4. Step 4: Simplify right side
    169,886.87x = 14,640,795,687.25
  5. Step 5: Solve for x
    x = 14,640,795,687.25/169,886.87
  6. Step 6: Final answer
    x = 86,179.68

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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.