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Finding the Fourth Proportional to 146,647.54, 202,372.59 and 79,579.54

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Solution

The fourth proportional to 146,647.54, 202,372.59 and 79,579.54 is: 109,819.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    146,647.54 : 202,372.59 = 79,579.54 : x
  2. Step 2: Convert to fraction form
    146,647.54/202,372.59 = 79,579.54/x
  3. Step 3: Cross multiply
    146,647.54x = 202,372.59 × 79,579.54
  4. Step 4: Simplify right side
    146,647.54x = 16,104,717,620.81
  5. Step 5: Solve for x
    x = 16,104,717,620.81/146,647.54
  6. Step 6: Final answer
    x = 109,819.21

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.