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Finding the Fourth Proportional to 95,908.60, 143,906.10 and 45,969.40

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Solution

The fourth proportional to 95,908.60, 143,906.10 and 45,969.40 is: 68,974.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    95,908.60 : 143,906.10 = 45,969.40 : x
  2. Step 2: Convert to fraction form
    95,908.60/143,906.10 = 45,969.40/x
  3. Step 3: Cross multiply
    95,908.60x = 143,906.10 × 45,969.40
  4. Step 4: Simplify right side
    95,908.60x = 6,615,277,073.34
  5. Step 5: Solve for x
    x = 6,615,277,073.34/95,908.60
  6. Step 6: Final answer
    x = 68,974.81

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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.