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Finding the Fourth Proportional to 351,956.35, 527,733.98 and 138,608.73

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Solution

The fourth proportional to 351,956.35, 527,733.98 and 138,608.73 is: 207,834.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    351,956.35 : 527,733.98 = 138,608.73 : x
  2. Step 2: Convert to fraction form
    351,956.35/527,733.98 = 138,608.73/x
  3. Step 3: Cross multiply
    351,956.35x = 527,733.98 × 138,608.73
  4. Step 4: Simplify right side
    351,956.35x = 73,148,536,642.33
  5. Step 5: Solve for x
    x = 73,148,536,642.33/351,956.35
  6. Step 6: Final answer
    x = 207,834.11

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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.