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Finding the Fourth Proportional to 316,834.78, 437,231.91 and 173,600.26

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Solution

The fourth proportional to 316,834.78, 437,231.91 and 173,600.26 is: 239,568.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    316,834.78 : 437,231.91 = 173,600.26 : x
  2. Step 2: Convert to fraction form
    316,834.78/437,231.91 = 173,600.26/x
  3. Step 3: Cross multiply
    316,834.78x = 437,231.91 × 173,600.26
  4. Step 4: Simplify right side
    316,834.78x = 75,903,573,256.30
  5. Step 5: Solve for x
    x = 75,903,573,256.30/316,834.78
  6. Step 6: Final answer
    x = 239,568.31

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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.