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Finding the Fourth Proportional to 191,423.88, 287,147.46 and 58,313.88

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Solution

The fourth proportional to 191,423.88, 287,147.46 and 58,313.88 is: 87,474.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    191,423.88 : 287,147.46 = 58,313.88 : x
  2. Step 2: Convert to fraction form
    191,423.88/287,147.46 = 58,313.88/x
  3. Step 3: Cross multiply
    191,423.88x = 287,147.46 × 58,313.88
  4. Step 4: Simplify right side
    191,423.88x = 16,744,682,524.74
  5. Step 5: Solve for x
    x = 16,744,682,524.74/191,423.88
  6. Step 6: Final answer
    x = 87,474.37

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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.