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Finding the Fourth Proportional to 78,604.43, 117,906.64 and 26,018.01

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Solution

The fourth proportional to 78,604.43, 117,906.64 and 26,018.01 is: 39,027.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,604.43 : 117,906.64 = 26,018.01 : x
  2. Step 2: Convert to fraction form
    78,604.43/117,906.64 = 26,018.01/x
  3. Step 3: Cross multiply
    78,604.43x = 117,906.64 × 26,018.01
  4. Step 4: Simplify right side
    78,604.43x = 3,067,696,073.54
  5. Step 5: Solve for x
    x = 3,067,696,073.54/78,604.43
  6. Step 6: Final answer
    x = 39,027.02

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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.