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Finding the Fourth Proportional to 182,892.80, 274,922.40 and 172,395.20

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Solution

The fourth proportional to 182,892.80, 274,922.40 and 172,395.20 is: 259,142.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    182,892.80 : 274,922.40 = 172,395.20 : x
  2. Step 2: Convert to fraction form
    182,892.80/274,922.40 = 172,395.20/x
  3. Step 3: Cross multiply
    182,892.80x = 274,922.40 × 172,395.20
  4. Step 4: Simplify right side
    182,892.80x = 47,395,302,132.48
  5. Step 5: Solve for x
    x = 47,395,302,132.48/182,892.80
  6. Step 6: Final answer
    x = 259,142.53

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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.