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Finding the Fourth Proportional to 342,337.26, 513,493.59 and 105,679.94

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Solution

The fourth proportional to 342,337.26, 513,493.59 and 105,679.94 is: 158,516.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    342,337.26 : 513,493.59 = 105,679.94 : x
  2. Step 2: Convert to fraction form
    342,337.26/513,493.59 = 105,679.94/x
  3. Step 3: Cross multiply
    342,337.26x = 513,493.59 × 105,679.94
  4. Step 4: Simplify right side
    342,337.26x = 54,265,972,052.98
  5. Step 5: Solve for x
    x = 54,265,972,052.98/342,337.26
  6. Step 6: Final answer
    x = 158,516.11

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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.