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Finding the Fourth Proportional to 172,373.20, 258,559.80 and 169,748.80

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Solution

The fourth proportional to 172,373.20, 258,559.80 and 169,748.80 is: 254,623.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,373.20 : 258,559.80 = 169,748.80 : x
  2. Step 2: Convert to fraction form
    172,373.20/258,559.80 = 169,748.80/x
  3. Step 3: Cross multiply
    172,373.20x = 258,559.80 × 169,748.80
  4. Step 4: Simplify right side
    172,373.20x = 43,890,215,778.24
  5. Step 5: Solve for x
    x = 43,890,215,778.24/172,373.20
  6. Step 6: Final answer
    x = 254,623.20

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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.