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Finding the Fourth Proportional to 79,664.98, 119,469.91 and 35,322.74

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Solution

The fourth proportional to 79,664.98, 119,469.91 and 35,322.74 is: 52,971.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,664.98 : 119,469.91 = 35,322.74 : x
  2. Step 2: Convert to fraction form
    79,664.98/119,469.91 = 35,322.74/x
  3. Step 3: Cross multiply
    79,664.98x = 119,469.91 × 35,322.74
  4. Step 4: Simplify right side
    79,664.98x = 4,220,004,568.75
  5. Step 5: Solve for x
    x = 4,220,004,568.75/79,664.98
  6. Step 6: Final answer
    x = 52,971.89

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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.