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Finding the Fourth Proportional to 167,389.80, 250,851.42 and 125,788.20

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Solution

The fourth proportional to 167,389.80, 250,851.42 and 125,788.20 is: 188,507.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    167,389.80 : 250,851.42 = 125,788.20 : x
  2. Step 2: Convert to fraction form
    167,389.80/250,851.42 = 125,788.20/x
  3. Step 3: Cross multiply
    167,389.80x = 250,851.42 × 125,788.20
  4. Step 4: Simplify right side
    167,389.80x = 31,554,148,589.24
  5. Step 5: Solve for x
    x = 31,554,148,589.24/167,389.80
  6. Step 6: Final answer
    x = 188,507.00

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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.