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Finding the Fourth Proportional to 229,502.20, 344,253.30 and 79,911.40

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Solution

The fourth proportional to 229,502.20, 344,253.30 and 79,911.40 is: 119,867.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    229,502.20 : 344,253.30 = 79,911.40 : x
  2. Step 2: Convert to fraction form
    229,502.20/344,253.30 = 79,911.40/x
  3. Step 3: Cross multiply
    229,502.20x = 344,253.30 × 79,911.40
  4. Step 4: Simplify right side
    229,502.20x = 27,509,763,157.62
  5. Step 5: Solve for x
    x = 27,509,763,157.62/229,502.20
  6. Step 6: Final answer
    x = 119,867.10

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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.