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Finding the Fourth Proportional to 79,217.94, 118,821.14 and 29,274.76

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Solution

The fourth proportional to 79,217.94, 118,821.14 and 29,274.76 is: 43,910.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,217.94 : 118,821.14 = 29,274.76 : x
  2. Step 2: Convert to fraction form
    79,217.94/118,821.14 = 29,274.76/x
  3. Step 3: Cross multiply
    79,217.94x = 118,821.14 × 29,274.76
  4. Step 4: Simplify right side
    79,217.94x = 3,478,460,356.43
  5. Step 5: Solve for x
    x = 3,478,460,356.43/79,217.94
  6. Step 6: Final answer
    x = 43,910.01

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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.