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Finding the Fourth Proportional to 70,786.68, 106,069.83 and 26,401.50

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Solution

The fourth proportional to 70,786.68, 106,069.83 and 26,401.50 is: 39,561.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,786.68 : 106,069.83 = 26,401.50 : x
  2. Step 2: Convert to fraction form
    70,786.68/106,069.83 = 26,401.50/x
  3. Step 3: Cross multiply
    70,786.68x = 106,069.83 × 26,401.50
  4. Step 4: Simplify right side
    70,786.68x = 2,800,402,616.75
  5. Step 5: Solve for x
    x = 2,800,402,616.75/70,786.68
  6. Step 6: Final answer
    x = 39,561.15

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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.