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Finding the Fourth Proportional to 107,446.80, 161,170.01 and 28,561.02

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Solution

The fourth proportional to 107,446.80, 161,170.01 and 28,561.02 is: 42,841.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,446.80 : 161,170.01 = 28,561.02 : x
  2. Step 2: Convert to fraction form
    107,446.80/161,170.01 = 28,561.02/x
  3. Step 3: Cross multiply
    107,446.80x = 161,170.01 × 28,561.02
  4. Step 4: Simplify right side
    107,446.80x = 4,603,179,736.21
  5. Step 5: Solve for x
    x = 4,603,179,736.21/107,446.80
  6. Step 6: Final answer
    x = 42,841.48

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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.