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Finding the Fourth Proportional to 174,097.78, 261,169.91 and 68,892.15

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Solution

The fourth proportional to 174,097.78, 261,169.91 and 68,892.15 is: 103,347.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    174,097.78 : 261,169.91 = 68,892.15 : x
  2. Step 2: Convert to fraction form
    174,097.78/261,169.91 = 68,892.15/x
  3. Step 3: Cross multiply
    174,097.78x = 261,169.91 × 68,892.15
  4. Step 4: Simplify right side
    174,097.78x = 17,992,556,615.21
  5. Step 5: Solve for x
    x = 17,992,556,615.21/174,097.78
  6. Step 6: Final answer
    x = 103,347.42

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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.