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Finding the Fourth Proportional to 119,987.64, 179,843.22 and 64,467

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Solution

The fourth proportional to 119,987.64, 179,843.22 and 64,467 is: 96,626.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,987.64 : 179,843.22 = 64,467 : x
  2. Step 2: Convert to fraction form
    119,987.64/179,843.22 = 64,467/x
  3. Step 3: Cross multiply
    119,987.64x = 179,843.22 × 64,467
  4. Step 4: Simplify right side
    119,987.64x = 11,593,952,863.74
  5. Step 5: Solve for x
    x = 11,593,952,863.74/119,987.64
  6. Step 6: Final answer
    x = 96,626.23

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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.