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Finding the Fourth Proportional to 316,472.45, 436,732.43 and 173,241.54

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Solution

The fourth proportional to 316,472.45, 436,732.43 and 173,241.54 is: 239,073.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    316,472.45 : 436,732.43 = 173,241.54 : x
  2. Step 2: Convert to fraction form
    316,472.45/436,732.43 = 173,241.54/x
  3. Step 3: Cross multiply
    316,472.45x = 436,732.43 × 173,241.54
  4. Step 4: Simplify right side
    316,472.45x = 75,660,197,874.93
  5. Step 5: Solve for x
    x = 75,660,197,874.93/316,472.45
  6. Step 6: Final answer
    x = 239,073.57

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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.