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Finding the Fourth Proportional to 70,918.62, 106,410.22 and 26,548.83

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Solution

The fourth proportional to 70,918.62, 106,410.22 and 26,548.83 is: 39,835.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,918.62 : 106,410.22 = 26,548.83 : x
  2. Step 2: Convert to fraction form
    70,918.62/106,410.22 = 26,548.83/x
  3. Step 3: Cross multiply
    70,918.62x = 106,410.22 × 26,548.83
  4. Step 4: Simplify right side
    70,918.62x = 2,825,066,924.01
  5. Step 5: Solve for x
    x = 2,825,066,924.01/70,918.62
  6. Step 6: Final answer
    x = 39,835.33

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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.