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Finding the Fourth Proportional to 167,928.40, 251,950.20 and 74,501.20

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Solution

The fourth proportional to 167,928.40, 251,950.20 and 74,501.20 is: 111,777.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    167,928.40 : 251,950.20 = 74,501.20 : x
  2. Step 2: Convert to fraction form
    167,928.40/251,950.20 = 74,501.20/x
  3. Step 3: Cross multiply
    167,928.40x = 251,950.20 × 74,501.20
  4. Step 4: Simplify right side
    167,928.40x = 18,770,592,240.24
  5. Step 5: Solve for x
    x = 18,770,592,240.24/167,928.40
  6. Step 6: Final answer
    x = 111,777.35

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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.