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Finding the Fourth Proportional to 168,978.78, 233,198.08 and 93,527.26

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Solution

The fourth proportional to 168,978.78, 233,198.08 and 93,527.26 is: 129,071.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,978.78 : 233,198.08 = 93,527.26 : x
  2. Step 2: Convert to fraction form
    168,978.78/233,198.08 = 93,527.26/x
  3. Step 3: Cross multiply
    168,978.78x = 233,198.08 × 93,527.26
  4. Step 4: Simplify right side
    168,978.78x = 21,810,377,459.66
  5. Step 5: Solve for x
    x = 21,810,377,459.66/168,978.78
  6. Step 6: Final answer
    x = 129,071.69

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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.