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Finding the Fourth Proportional to 79,410.81, 119,130.83 and 26,105.79

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Solution

The fourth proportional to 79,410.81, 119,130.83 and 26,105.79 is: 39,163.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,410.81 : 119,130.83 = 26,105.79 : x
  2. Step 2: Convert to fraction form
    79,410.81/119,130.83 = 26,105.79/x
  3. Step 3: Cross multiply
    79,410.81x = 119,130.83 × 26,105.79
  4. Step 4: Simplify right side
    79,410.81x = 3,110,004,771.19
  5. Step 5: Solve for x
    x = 3,110,004,771.19/79,410.81
  6. Step 6: Final answer
    x = 39,163.50

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1.5x scale

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.