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Finding the Fourth Proportional to 317,109.72, 437,608.08 and 173,869.41

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Solution

The fourth proportional to 317,109.72, 437,608.08 and 173,869.41 is: 239,937.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    317,109.72 : 437,608.08 = 173,869.41 : x
  2. Step 2: Convert to fraction form
    317,109.72/437,608.08 = 173,869.41/x
  3. Step 3: Cross multiply
    317,109.72x = 437,608.08 × 173,869.41
  4. Step 4: Simplify right side
    317,109.72x = 76,086,658,680.83
  5. Step 5: Solve for x
    x = 76,086,658,680.83/317,109.72
  6. Step 6: Final answer
    x = 239,937.96

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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.