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Finding the Fourth Proportional to 169,668.96, 234,161.76 and 97,078.56

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Solution

The fourth proportional to 169,668.96, 234,161.76 and 97,078.56 is: 133,979.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    169,668.96 : 234,161.76 = 97,078.56 : x
  2. Step 2: Convert to fraction form
    169,668.96/234,161.76 = 97,078.56/x
  3. Step 3: Cross multiply
    169,668.96x = 234,161.76 × 97,078.56
  4. Step 4: Simplify right side
    169,668.96x = 22,732,086,467.87
  5. Step 5: Solve for x
    x = 22,732,086,467.87/169,668.96
  6. Step 6: Final answer
    x = 133,979.05

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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.