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Finding the Fourth Proportional to 228,766.56, 343,195.68 and 79,012.32

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Solution

The fourth proportional to 228,766.56, 343,195.68 and 79,012.32 is: 118,534.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    228,766.56 : 343,195.68 = 79,012.32 : x
  2. Step 2: Convert to fraction form
    228,766.56/343,195.68 = 79,012.32/x
  3. Step 3: Cross multiply
    228,766.56x = 343,195.68 × 79,012.32
  4. Step 4: Simplify right side
    228,766.56x = 27,116,686,890.78
  5. Step 5: Solve for x
    x = 27,116,686,890.78/228,766.56
  6. Step 6: Final answer
    x = 118,534.31

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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.