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Finding the Fourth Proportional to 228,996.34, 343,412.19 and 79,195.95

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Solution

The fourth proportional to 228,996.34, 343,412.19 and 79,195.95 is: 118,765.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    228,996.34 : 343,412.19 = 79,195.95 : x
  2. Step 2: Convert to fraction form
    228,996.34/343,412.19 = 79,195.95/x
  3. Step 3: Cross multiply
    228,996.34x = 343,412.19 × 79,195.95
  4. Step 4: Simplify right side
    228,996.34x = 27,196,854,628.63
  5. Step 5: Solve for x
    x = 27,196,854,628.63/228,996.34
  6. Step 6: Final answer
    x = 118,765.46

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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.