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Finding the Fourth Proportional to 79,206.76, 118,800.21 and 25,894.27

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Solution

The fourth proportional to 79,206.76, 118,800.21 and 25,894.27 is: 38,838.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,206.76 : 118,800.21 = 25,894.27 : x
  2. Step 2: Convert to fraction form
    79,206.76/118,800.21 = 25,894.27/x
  3. Step 3: Cross multiply
    79,206.76x = 118,800.21 × 25,894.27
  4. Step 4: Simplify right side
    79,206.76x = 3,076,244,713.80
  5. Step 5: Solve for x
    x = 3,076,244,713.80/79,206.76
  6. Step 6: Final answer
    x = 38,838.16

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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.