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Finding the Fourth Proportional to 342,572.39, 513,893.12 and 117,903.30

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Solution

The fourth proportional to 342,572.39, 513,893.12 and 117,903.30 is: 176,866.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    342,572.39 : 513,893.12 = 117,903.30 : x
  2. Step 2: Convert to fraction form
    342,572.39/513,893.12 = 117,903.30/x
  3. Step 3: Cross multiply
    342,572.39x = 513,893.12 × 117,903.30
  4. Step 4: Simplify right side
    342,572.39x = 60,589,694,105.78
  5. Step 5: Solve for x
    x = 60,589,694,105.78/342,572.39
  6. Step 6: Final answer
    x = 176,866.83

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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.