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Finding the Fourth Proportional to 227,386.50, 313,789.11 and 125,421.48

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Solution

The fourth proportional to 227,386.50, 313,789.11 and 125,421.48 is: 173,079.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    227,386.50 : 313,789.11 = 125,421.48 : x
  2. Step 2: Convert to fraction form
    227,386.50/313,789.11 = 125,421.48/x
  3. Step 3: Cross multiply
    227,386.50x = 313,789.11 × 125,421.48
  4. Step 4: Simplify right side
    227,386.50x = 39,355,894,584.08
  5. Step 5: Solve for x
    x = 39,355,894,584.08/227,386.50
  6. Step 6: Final answer
    x = 173,079.29

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.