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Finding the Fourth Proportional to 228,776.76, 343,211.04 and 79,022.52

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Solution

The fourth proportional to 228,776.76, 343,211.04 and 79,022.52 is: 118,549.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    228,776.76 : 343,211.04 = 79,022.52 : x
  2. Step 2: Convert to fraction form
    228,776.76/343,211.04 = 79,022.52/x
  3. Step 3: Cross multiply
    228,776.76x = 343,211.04 × 79,022.52
  4. Step 4: Simplify right side
    228,776.76x = 27,121,401,272.62
  5. Step 5: Solve for x
    x = 27,121,401,272.62/228,776.76
  6. Step 6: Final answer
    x = 118,549.63

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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.