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Finding the Fourth Proportional to 70,920.28, 106,398.84 and 26,550.52

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Solution

The fourth proportional to 70,920.28, 106,398.84 and 26,550.52 is: 39,832.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,920.28 : 106,398.84 = 26,550.52 : x
  2. Step 2: Convert to fraction form
    70,920.28/106,398.84 = 26,550.52/x
  3. Step 3: Cross multiply
    70,920.28x = 106,398.84 × 26,550.52
  4. Step 4: Simplify right side
    70,920.28x = 2,824,944,529.40
  5. Step 5: Solve for x
    x = 2,824,944,529.40/70,920.28
  6. Step 6: Final answer
    x = 39,832.68

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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.