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Finding the Fourth Proportional to 169,989.54, 234,578.33 and 93,503.79

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Solution

The fourth proportional to 169,989.54, 234,578.33 and 93,503.79 is: 129,031.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    169,989.54 : 234,578.33 = 93,503.79 : x
  2. Step 2: Convert to fraction form
    169,989.54/234,578.33 = 93,503.79/x
  3. Step 3: Cross multiply
    169,989.54x = 234,578.33 × 93,503.79
  4. Step 4: Simplify right side
    169,989.54x = 21,933,962,906.87
  5. Step 5: Solve for x
    x = 21,933,962,906.87/169,989.54
  6. Step 6: Final answer
    x = 129,031.25

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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.