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Finding the Fourth Proportional to 235,676.79, 353,518.47 and 67,197.18

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Solution

The fourth proportional to 235,676.79, 353,518.47 and 67,197.18 is: 100,796.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    235,676.79 : 353,518.47 = 67,197.18 : x
  2. Step 2: Convert to fraction form
    235,676.79/353,518.47 = 67,197.18/x
  3. Step 3: Cross multiply
    235,676.79x = 353,518.47 × 67,197.18
  4. Step 4: Simplify right side
    235,676.79x = 23,755,444,279.03
  5. Step 5: Solve for x
    x = 23,755,444,279.03/235,676.79
  6. Step 6: Final answer
    x = 100,796.71

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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.