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Finding the Fourth Proportional to 70,809.33, 106,213.99 and 26,439.54

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Solution

The fourth proportional to 70,809.33, 106,213.99 and 26,439.54 is: 39,659.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,809.33 : 106,213.99 = 26,439.54 : x
  2. Step 2: Convert to fraction form
    70,809.33/106,213.99 = 26,439.54/x
  3. Step 3: Cross multiply
    70,809.33x = 106,213.99 × 26,439.54
  4. Step 4: Simplify right side
    70,809.33x = 2,808,249,037.16
  5. Step 5: Solve for x
    x = 2,808,249,037.16/70,809.33
  6. Step 6: Final answer
    x = 39,659.31

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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.