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Finding the Fourth Proportional to 104,948.80, 157,408.80 and 34,820.80

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Solution

The fourth proportional to 104,948.80, 157,408.80 and 34,820.80 is: 52,226.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,948.80 : 157,408.80 = 34,820.80 : x
  2. Step 2: Convert to fraction form
    104,948.80/157,408.80 = 34,820.80/x
  3. Step 3: Cross multiply
    104,948.80x = 157,408.80 × 34,820.80
  4. Step 4: Simplify right side
    104,948.80x = 5,481,100,343.04
  5. Step 5: Solve for x
    x = 5,481,100,343.04/104,948.80
  6. Step 6: Final answer
    x = 52,226.42

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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.