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Finding the Fourth Proportional to 435,243.45, 652,789.98 and 115,397.54

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Solution

The fourth proportional to 435,243.45, 652,789.98 and 115,397.54 is: 173,076.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    435,243.45 : 652,789.98 = 115,397.54 : x
  2. Step 2: Convert to fraction form
    435,243.45/652,789.98 = 115,397.54/x
  3. Step 3: Cross multiply
    435,243.45x = 652,789.98 × 115,397.54
  4. Step 4: Simplify right side
    435,243.45x = 75,330,354,564.70
  5. Step 5: Solve for x
    x = 75,330,354,564.70/435,243.45
  6. Step 6: Final answer
    x = 173,076.37

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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.