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Finding the Fourth Proportional to 194,378.67, 291,447.72 and 75,910.71

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Solution

The fourth proportional to 194,378.67, 291,447.72 and 75,910.71 is: 113,819.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    194,378.67 : 291,447.72 = 75,910.71 : x
  2. Step 2: Convert to fraction form
    194,378.67/291,447.72 = 75,910.71/x
  3. Step 3: Cross multiply
    194,378.67x = 291,447.72 × 75,910.71
  4. Step 4: Simplify right side
    194,378.67x = 22,124,003,353.08
  5. Step 5: Solve for x
    x = 22,124,003,353.08/194,378.67
  6. Step 6: Final answer
    x = 113,819.09

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1.5x scale

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.