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Finding the Fourth Proportional to 188,704.22, 260,408.13 and 103,822.70

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Solution

The fourth proportional to 188,704.22, 260,408.13 and 103,822.70 is: 143,273.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,704.22 : 260,408.13 = 103,822.70 : x
  2. Step 2: Convert to fraction form
    188,704.22/260,408.13 = 103,822.70/x
  3. Step 3: Cross multiply
    188,704.22x = 260,408.13 × 103,822.70
  4. Step 4: Simplify right side
    188,704.22x = 27,036,275,158.55
  5. Step 5: Solve for x
    x = 27,036,275,158.55/188,704.22
  6. Step 6: Final answer
    x = 143,273.29

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.