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Finding the Fourth Proportional to 191,744.30, 287,616.45 and 58,624.56

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Solution

The fourth proportional to 191,744.30, 287,616.45 and 58,624.56 is: 87,936.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    191,744.30 : 287,616.45 = 58,624.56 : x
  2. Step 2: Convert to fraction form
    191,744.30/287,616.45 = 58,624.56/x
  3. Step 3: Cross multiply
    191,744.30x = 287,616.45 × 58,624.56
  4. Step 4: Simplify right side
    191,744.30x = 16,861,388,049.85
  5. Step 5: Solve for x
    x = 16,861,388,049.85/191,744.30
  6. Step 6: Final answer
    x = 87,936.84

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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.