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Finding the Fourth Proportional to 335,065.45, 501,876.42 and 157,306.09

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Solution

The fourth proportional to 335,065.45, 501,876.42 and 157,306.09 is: 235,620.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    335,065.45 : 501,876.42 = 157,306.09 : x
  2. Step 2: Convert to fraction form
    335,065.45/501,876.42 = 157,306.09/x
  3. Step 3: Cross multiply
    335,065.45x = 501,876.42 × 157,306.09
  4. Step 4: Simplify right side
    335,065.45x = 78,948,217,293.40
  5. Step 5: Solve for x
    x = 78,948,217,293.40/335,065.45
  6. Step 6: Final answer
    x = 235,620.29

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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.