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Finding the Fourth Proportional to 79,315.92, 118,936.20 and 46,046.16

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Solution

The fourth proportional to 79,315.92, 118,936.20 and 46,046.16 is: 69,047.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,315.92 : 118,936.20 = 46,046.16 : x
  2. Step 2: Convert to fraction form
    79,315.92/118,936.20 = 46,046.16/x
  3. Step 3: Cross multiply
    79,315.92x = 118,936.20 × 46,046.16
  4. Step 4: Simplify right side
    79,315.92x = 5,476,555,294.99
  5. Step 5: Solve for x
    x = 5,476,555,294.99/79,315.92
  6. Step 6: Final answer
    x = 69,047.37

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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.