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Finding the Fourth Proportional to 79,394.63, 119,122.99 and 34,990.16

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Solution

The fourth proportional to 79,394.63, 119,122.99 and 34,990.16 is: 52,498.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,394.63 : 119,122.99 = 34,990.16 : x
  2. Step 2: Convert to fraction form
    79,394.63/119,122.99 = 34,990.16/x
  3. Step 3: Cross multiply
    79,394.63x = 119,122.99 × 34,990.16
  4. Step 4: Simplify right side
    79,394.63x = 4,168,131,796.69
  5. Step 5: Solve for x
    x = 4,168,131,796.69/79,394.63
  6. Step 6: Final answer
    x = 52,498.92

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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.