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Finding the Fourth Proportional to 79,077.60, 118,468.78 and 52,800.80

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Solution

The fourth proportional to 79,077.60, 118,468.78 and 52,800.80 is: 79,102.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,077.60 : 118,468.78 = 52,800.80 : x
  2. Step 2: Convert to fraction form
    79,077.60/118,468.78 = 52,800.80/x
  3. Step 3: Cross multiply
    79,077.60x = 118,468.78 × 52,800.80
  4. Step 4: Simplify right side
    79,077.60x = 6,255,245,634.68
  5. Step 5: Solve for x
    x = 6,255,245,634.68/79,077.60
  6. Step 6: Final answer
    x = 79,102.62

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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.