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Finding the Fourth Proportional to 121,100.00, 167,178.53 and 93,815.37

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Solution

The fourth proportional to 121,100.00, 167,178.53 and 93,815.37 is: 129,512.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,100.00 : 167,178.53 = 93,815.37 : x
  2. Step 2: Convert to fraction form
    121,100.00/167,178.53 = 93,815.37/x
  3. Step 3: Cross multiply
    121,100.00x = 167,178.53 × 93,815.37
  4. Step 4: Simplify right side
    121,100.00x = 15,683,915,882.54
  5. Step 5: Solve for x
    x = 15,683,915,882.54/121,100.00
  6. Step 6: Final answer
    x = 129,512.11

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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.