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Finding the Fourth Proportional to 198,036.24, 296,985.24 and 79,676.88

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Solution

The fourth proportional to 198,036.24, 296,985.24 and 79,676.88 is: 119,487.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,036.24 : 296,985.24 = 79,676.88 : x
  2. Step 2: Convert to fraction form
    198,036.24/296,985.24 = 79,676.88/x
  3. Step 3: Cross multiply
    198,036.24x = 296,985.24 × 79,676.88
  4. Step 4: Simplify right side
    198,036.24x = 23,662,857,329.25
  5. Step 5: Solve for x
    x = 23,662,857,329.25/198,036.24
  6. Step 6: Final answer
    x = 119,487.51

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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.