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Finding the Fourth Proportional to 339,117.70, 508,757.55 and 102,462.70

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Solution

The fourth proportional to 339,117.70, 508,757.55 and 102,462.70 is: 153,718.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    339,117.70 : 508,757.55 = 102,462.70 : x
  2. Step 2: Convert to fraction form
    339,117.70/508,757.55 = 102,462.70/x
  3. Step 3: Cross multiply
    339,117.70x = 508,757.55 × 102,462.70
  4. Step 4: Simplify right side
    339,117.70x = 52,128,672,218.39
  5. Step 5: Solve for x
    x = 52,128,672,218.39/339,117.70
  6. Step 6: Final answer
    x = 153,718.52

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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.