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Finding the Fourth Proportional to 79,884.74, 119,712.92 and 58,658.23

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Solution

The fourth proportional to 79,884.74, 119,712.92 and 58,658.23 is: 87,903.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,884.74 : 119,712.92 = 58,658.23 : x
  2. Step 2: Convert to fraction form
    79,884.74/119,712.92 = 58,658.23/x
  3. Step 3: Cross multiply
    79,884.74x = 119,712.92 × 58,658.23
  4. Step 4: Simplify right side
    79,884.74x = 7,022,147,995.33
  5. Step 5: Solve for x
    x = 7,022,147,995.33/79,884.74
  6. Step 6: Final answer
    x = 87,903.50

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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.