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Finding the Fourth Proportional to 339,162.70, 508,744.05 and 102,541.90

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Solution

The fourth proportional to 339,162.70, 508,744.05 and 102,541.90 is: 153,812.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    339,162.70 : 508,744.05 = 102,541.90 : x
  2. Step 2: Convert to fraction form
    339,162.70/508,744.05 = 102,541.90/x
  3. Step 3: Cross multiply
    339,162.70x = 508,744.05 × 102,541.90
  4. Step 4: Simplify right side
    339,162.70x = 52,167,581,500.70
  5. Step 5: Solve for x
    x = 52,167,581,500.70/339,162.70
  6. Step 6: Final answer
    x = 153,812.85

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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.