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Finding the Fourth Proportional to 198,543.52, 273,992.20 and 107,901.01

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Solution

The fourth proportional to 198,543.52, 273,992.20 and 107,901.01 is: 148,904.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,543.52 : 273,992.20 = 107,901.01 : x
  2. Step 2: Convert to fraction form
    198,543.52/273,992.20 = 107,901.01/x
  3. Step 3: Cross multiply
    198,543.52x = 273,992.20 × 107,901.01
  4. Step 4: Simplify right side
    198,543.52x = 29,564,035,791.80
  5. Step 5: Solve for x
    x = 29,564,035,791.80/198,543.52
  6. Step 6: Final answer
    x = 148,904.56

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.