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Finding the Fourth Proportional to 228,782.68, 343,228.48 and 79,024.20

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Solution

The fourth proportional to 228,782.68, 343,228.48 and 79,024.20 is: 118,555.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    228,782.68 : 343,228.48 = 79,024.20 : x
  2. Step 2: Convert to fraction form
    228,782.68/343,228.48 = 79,024.20/x
  3. Step 3: Cross multiply
    228,782.68x = 343,228.48 × 79,024.20
  4. Step 4: Simplify right side
    228,782.68x = 27,123,356,049.22
  5. Step 5: Solve for x
    x = 27,123,356,049.22/228,782.68
  6. Step 6: Final answer
    x = 118,555.11

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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.