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Finding the Fourth Proportional to 198,092, 273,362.56 and 112,039.60

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Solution

The fourth proportional to 198,092, 273,362.56 and 112,039.60 is: 154,612.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,092 : 273,362.56 = 112,039.60 : x
  2. Step 2: Convert to fraction form
    198,092/273,362.56 = 112,039.60/x
  3. Step 3: Cross multiply
    198,092x = 273,362.56 × 112,039.60
  4. Step 4: Simplify right side
    198,092x = 30,627,431,877.38
  5. Step 5: Solve for x
    x = 30,627,431,877.38/198,092
  6. Step 6: Final answer
    x = 154,612.16

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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.