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Finding the Fourth Proportional to 191,169.21, 263,809.17 and 103,952.41

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Solution

The fourth proportional to 191,169.21, 263,809.17 and 103,952.41 is: 143,451.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    191,169.21 : 263,809.17 = 103,952.41 : x
  2. Step 2: Convert to fraction form
    191,169.21/263,809.17 = 103,952.41/x
  3. Step 3: Cross multiply
    191,169.21x = 263,809.17 × 103,952.41
  4. Step 4: Simplify right side
    191,169.21x = 27,423,598,342.08
  5. Step 5: Solve for x
    x = 27,423,598,342.08/191,169.21
  6. Step 6: Final answer
    x = 143,451.96

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.