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Finding the Fourth Proportional to 226,749.80, 340,254.30 and 156,679.40

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Solution

The fourth proportional to 226,749.80, 340,254.30 and 156,679.40 is: 235,108.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    226,749.80 : 340,254.30 = 156,679.40 : x
  2. Step 2: Convert to fraction form
    226,749.80/340,254.30 = 156,679.40/x
  3. Step 3: Cross multiply
    226,749.80x = 340,254.30 × 156,679.40
  4. Step 4: Simplify right side
    226,749.80x = 53,310,839,571.42
  5. Step 5: Solve for x
    x = 53,310,839,571.42/226,749.80
  6. Step 6: Final answer
    x = 235,108.65

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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.