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Finding the Fourth Proportional to 220,748.64, 330,863.60 and 102,169.52

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Solution

The fourth proportional to 220,748.64, 330,863.60 and 102,169.52 is: 153,134.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,748.64 : 330,863.60 = 102,169.52 : x
  2. Step 2: Convert to fraction form
    220,748.64/330,863.60 = 102,169.52/x
  3. Step 3: Cross multiply
    220,748.64x = 330,863.60 × 102,169.52
  4. Step 4: Simplify right side
    220,748.64x = 33,804,175,197.47
  5. Step 5: Solve for x
    x = 33,804,175,197.47/220,748.64
  6. Step 6: Final answer
    x = 153,134.24

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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.