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Finding the Fourth Proportional to 198,967.92, 298,402.68 and 124,049.51

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Solution

The fourth proportional to 198,967.92, 298,402.68 and 124,049.51 is: 186,043.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,967.92 : 298,402.68 = 124,049.51 : x
  2. Step 2: Convert to fraction form
    198,967.92/298,402.68 = 124,049.51/x
  3. Step 3: Cross multiply
    198,967.92x = 298,402.68 × 124,049.51
  4. Step 4: Simplify right side
    198,967.92x = 37,016,704,744.67
  5. Step 5: Solve for x
    x = 37,016,704,744.67/198,967.92
  6. Step 6: Final answer
    x = 186,043.58

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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.