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Finding the Fourth Proportional to 113,424.70, 170,201.85 and 43,354.30

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Solution

The fourth proportional to 113,424.70, 170,201.85 and 43,354.30 is: 65,056.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,424.70 : 170,201.85 = 43,354.30 : x
  2. Step 2: Convert to fraction form
    113,424.70/170,201.85 = 43,354.30/x
  3. Step 3: Cross multiply
    113,424.70x = 170,201.85 × 43,354.30
  4. Step 4: Simplify right side
    113,424.70x = 7,378,982,065.46
  5. Step 5: Solve for x
    x = 7,378,982,065.46/113,424.70
  6. Step 6: Final answer
    x = 65,056.22

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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.