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Finding the Fourth Proportional to 313,489.16, 432,614.94 and 170,249.24

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Solution

The fourth proportional to 313,489.16, 432,614.94 and 170,249.24 is: 234,943.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    313,489.16 : 432,614.94 = 170,249.24 : x
  2. Step 2: Convert to fraction form
    313,489.16/432,614.94 = 170,249.24/x
  3. Step 3: Cross multiply
    313,489.16x = 432,614.94 × 170,249.24
  4. Step 4: Simplify right side
    313,489.16x = 73,652,364,747.65
  5. Step 5: Solve for x
    x = 73,652,364,747.65/313,489.16
  6. Step 6: Final answer
    x = 234,943.90

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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.