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Finding the Fourth Proportional to 194,490.17, 291,735.30 and 61,380.84

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Solution

The fourth proportional to 194,490.17, 291,735.30 and 61,380.84 is: 92,071.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    194,490.17 : 291,735.30 = 61,380.84 : x
  2. Step 2: Convert to fraction form
    194,490.17/291,735.30 = 61,380.84/x
  3. Step 3: Cross multiply
    194,490.17x = 291,735.30 × 61,380.84
  4. Step 4: Simplify right side
    194,490.17x = 17,906,957,771.65
  5. Step 5: Solve for x
    x = 17,906,957,771.65/194,490.17
  6. Step 6: Final answer
    x = 92,071.27

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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.