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Finding the Fourth Proportional to 97,874.20, 146,811.30 and 74,546.20

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Solution

The fourth proportional to 97,874.20, 146,811.30 and 74,546.20 is: 111,819.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    97,874.20 : 146,811.30 = 74,546.20 : x
  2. Step 2: Convert to fraction form
    97,874.20/146,811.30 = 74,546.20/x
  3. Step 3: Cross multiply
    97,874.20x = 146,811.30 × 74,546.20
  4. Step 4: Simplify right side
    97,874.20x = 10,944,224,532.06
  5. Step 5: Solve for x
    x = 10,944,224,532.06/97,874.20
  6. Step 6: Final answer
    x = 111,819.30

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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.