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Finding the Fourth Proportional to 113,273.40, 169,910.10 and 39,401.40

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Solution

The fourth proportional to 113,273.40, 169,910.10 and 39,401.40 is: 59,102.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,273.40 : 169,910.10 = 39,401.40 : x
  2. Step 2: Convert to fraction form
    113,273.40/169,910.10 = 39,401.40/x
  3. Step 3: Cross multiply
    113,273.40x = 169,910.10 × 39,401.40
  4. Step 4: Simplify right side
    113,273.40x = 6,694,695,814.14
  5. Step 5: Solve for x
    x = 6,694,695,814.14/113,273.40
  6. Step 6: Final answer
    x = 59,102.10

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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.