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Finding the Fourth Proportional to 79,367.76, 119,079.12 and 52,820.28

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Solution

The fourth proportional to 79,367.76, 119,079.12 and 52,820.28 is: 79,248.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,367.76 : 119,079.12 = 52,820.28 : x
  2. Step 2: Convert to fraction form
    79,367.76/119,079.12 = 52,820.28/x
  3. Step 3: Cross multiply
    79,367.76x = 119,079.12 × 52,820.28
  4. Step 4: Simplify right side
    79,367.76x = 6,289,792,460.55
  5. Step 5: Solve for x
    x = 6,289,792,460.55/79,367.76
  6. Step 6: Final answer
    x = 79,248.71

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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.