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Finding the Fourth Proportional to 79,214.52, 118,786.28 and 47,208.71

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Solution

The fourth proportional to 79,214.52, 118,786.28 and 47,208.71 is: 70,791.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,214.52 : 118,786.28 = 47,208.71 : x
  2. Step 2: Convert to fraction form
    79,214.52/118,786.28 = 47,208.71/x
  3. Step 3: Cross multiply
    79,214.52x = 118,786.28 × 47,208.71
  4. Step 4: Simplify right side
    79,214.52x = 5,607,746,214.52
  5. Step 5: Solve for x
    x = 5,607,746,214.52/79,214.52
  6. Step 6: Final answer
    x = 70,791.90

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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.