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Finding the Fourth Proportional to 234,315.96, 351,401.29 and 84,536.79

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Solution

The fourth proportional to 234,315.96, 351,401.29 and 84,536.79 is: 126,778.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    234,315.96 : 351,401.29 = 84,536.79 : x
  2. Step 2: Convert to fraction form
    234,315.96/351,401.29 = 84,536.79/x
  3. Step 3: Cross multiply
    234,315.96x = 351,401.29 × 84,536.79
  4. Step 4: Simplify right side
    234,315.96x = 29,706,337,058.46
  5. Step 5: Solve for x
    x = 29,706,337,058.46/234,315.96
  6. Step 6: Final answer
    x = 126,778.97

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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.