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Finding the Fourth Proportional to 160,974.72, 222,155.16 and 92,994.55

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Solution

The fourth proportional to 160,974.72, 222,155.16 and 92,994.55 is: 128,338.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    160,974.72 : 222,155.16 = 92,994.55 : x
  2. Step 2: Convert to fraction form
    160,974.72/222,155.16 = 92,994.55/x
  3. Step 3: Cross multiply
    160,974.72x = 222,155.16 × 92,994.55
  4. Step 4: Simplify right side
    160,974.72x = 20,659,219,134.38
  5. Step 5: Solve for x
    x = 20,659,219,134.38/160,974.72
  6. Step 6: Final answer
    x = 128,338.28

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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.