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Finding the Fourth Proportional to 243,034.20, 364,551.30 and 168,238.80

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Solution

The fourth proportional to 243,034.20, 364,551.30 and 168,238.80 is: 252,358.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    243,034.20 : 364,551.30 = 168,238.80 : x
  2. Step 2: Convert to fraction form
    243,034.20/364,551.30 = 168,238.80/x
  3. Step 3: Cross multiply
    243,034.20x = 364,551.30 × 168,238.80
  4. Step 4: Simplify right side
    243,034.20x = 61,331,673,250.44
  5. Step 5: Solve for x
    x = 61,331,673,250.44/243,034.20
  6. Step 6: Final answer
    x = 252,358.20

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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.