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Finding the Fourth Proportional to 194,480.10, 291,614.85 and 87,739.31

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Solution

The fourth proportional to 194,480.10, 291,614.85 and 87,739.31 is: 131,561.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    194,480.10 : 291,614.85 = 87,739.31 : x
  2. Step 2: Convert to fraction form
    194,480.10/291,614.85 = 87,739.31/x
  3. Step 3: Cross multiply
    194,480.10x = 291,614.85 × 87,739.31
  4. Step 4: Simplify right side
    194,480.10x = 25,586,086,453.79
  5. Step 5: Solve for x
    x = 25,586,086,453.79/194,480.10
  6. Step 6: Final answer
    x = 131,561.46

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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.