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Finding the Fourth Proportional to 97,879.60, 146,819.40 and 92,436.40

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Solution

The fourth proportional to 97,879.60, 146,819.40 and 92,436.40 is: 138,654.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    97,879.60 : 146,819.40 = 92,436.40 : x
  2. Step 2: Convert to fraction form
    97,879.60/146,819.40 = 92,436.40/x
  3. Step 3: Cross multiply
    97,879.60x = 146,819.40 × 92,436.40
  4. Step 4: Simplify right side
    97,879.60x = 13,571,456,786.16
  5. Step 5: Solve for x
    x = 13,571,456,786.16/97,879.60
  6. Step 6: Final answer
    x = 138,654.60

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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.