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Finding the Fourth Proportional to 324,760.91, 487,130.42 and 114,393.38

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Solution

The fourth proportional to 324,760.91, 487,130.42 and 114,393.38 is: 171,586.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    324,760.91 : 487,130.42 = 114,393.38 : x
  2. Step 2: Convert to fraction form
    324,760.91/487,130.42 = 114,393.38/x
  3. Step 3: Cross multiply
    324,760.91x = 487,130.42 × 114,393.38
  4. Step 4: Simplify right side
    324,760.91x = 55,724,493,094.95
  5. Step 5: Solve for x
    x = 55,724,493,094.95/324,760.91
  6. Step 6: Final answer
    x = 171,586.21

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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.