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Finding the Fourth Proportional to 101,334.65, 151,978.68 and 38,161.33

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Solution

The fourth proportional to 101,334.65, 151,978.68 and 38,161.33 is: 57,233.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,334.65 : 151,978.68 = 38,161.33 : x
  2. Step 2: Convert to fraction form
    101,334.65/151,978.68 = 38,161.33/x
  3. Step 3: Cross multiply
    101,334.65x = 151,978.68 × 38,161.33
  4. Step 4: Simplify right side
    101,334.65x = 5,799,708,180.50
  5. Step 5: Solve for x
    x = 5,799,708,180.50/101,334.65
  6. Step 6: Final answer
    x = 57,233.22

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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.