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Finding the Fourth Proportional to 167,580.65, 251,229.36 and 72,739.10

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Solution

The fourth proportional to 167,580.65, 251,229.36 and 72,739.10 is: 109,047.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    167,580.65 : 251,229.36 = 72,739.10 : x
  2. Step 2: Convert to fraction form
    167,580.65/251,229.36 = 72,739.10/x
  3. Step 3: Cross multiply
    167,580.65x = 251,229.36 × 72,739.10
  4. Step 4: Simplify right side
    167,580.65x = 18,274,197,539.98
  5. Step 5: Solve for x
    x = 18,274,197,539.98/167,580.65
  6. Step 6: Final answer
    x = 109,047.18

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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.