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Finding the Fourth Proportional to 243,715.30, 365,268.51 and 168,234.03

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Solution

The fourth proportional to 243,715.30, 365,268.51 and 168,234.03 is: 252,140.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    243,715.30 : 365,268.51 = 168,234.03 : x
  2. Step 2: Convert to fraction form
    243,715.30/365,268.51 = 168,234.03/x
  3. Step 3: Cross multiply
    243,715.30x = 365,268.51 × 168,234.03
  4. Step 4: Simplify right side
    243,715.30x = 61,450,593,469.40
  5. Step 5: Solve for x
    x = 61,450,593,469.40/243,715.30
  6. Step 6: Final answer
    x = 252,140.90

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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.