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Finding the Fourth Proportional to 194,633, 291,910.60 and 54,392.84

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Solution

The fourth proportional to 194,633, 291,910.60 and 54,392.84 is: 81,578.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    194,633 : 291,910.60 = 54,392.84 : x
  2. Step 2: Convert to fraction form
    194,633/291,910.60 = 54,392.84/x
  3. Step 3: Cross multiply
    194,633x = 291,910.60 × 54,392.84
  4. Step 4: Simplify right side
    194,633x = 15,877,846,560.10
  5. Step 5: Solve for x
    x = 15,877,846,560.10/194,633
  6. Step 6: Final answer
    x = 81,578.39

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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.