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Finding the Fourth Proportional to 168,805.18, 253,114.35 and 69,035.43

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Solution

The fourth proportional to 168,805.18, 253,114.35 and 69,035.43 is: 103,514.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,805.18 : 253,114.35 = 69,035.43 : x
  2. Step 2: Convert to fraction form
    168,805.18/253,114.35 = 69,035.43/x
  3. Step 3: Cross multiply
    168,805.18x = 253,114.35 × 69,035.43
  4. Step 4: Simplify right side
    168,805.18x = 17,473,858,072.97
  5. Step 5: Solve for x
    x = 17,473,858,072.97/168,805.18
  6. Step 6: Final answer
    x = 103,514.94

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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.