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Finding the Fourth Proportional to 168,882.60, 253,242.09 and 69,003.12

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Solution

The fourth proportional to 168,882.60, 253,242.09 and 69,003.12 is: 103,471.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,882.60 : 253,242.09 = 69,003.12 : x
  2. Step 2: Convert to fraction form
    168,882.60/253,242.09 = 69,003.12/x
  3. Step 3: Cross multiply
    168,882.60x = 253,242.09 × 69,003.12
  4. Step 4: Simplify right side
    168,882.60x = 17,474,494,325.32
  5. Step 5: Solve for x
    x = 17,474,494,325.32/168,882.60
  6. Step 6: Final answer
    x = 103,471.25

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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.