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Finding the Fourth Proportional to 199,079.42, 274,719.90 and 113,027.12

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Solution

The fourth proportional to 199,079.42, 274,719.90 and 113,027.12 is: 155,971.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    199,079.42 : 274,719.90 = 113,027.12 : x
  2. Step 2: Convert to fraction form
    199,079.42/274,719.90 = 113,027.12/x
  3. Step 3: Cross multiply
    199,079.42x = 274,719.90 × 113,027.12
  4. Step 4: Simplify right side
    199,079.42x = 31,050,800,093.66
  5. Step 5: Solve for x
    x = 31,050,800,093.66/199,079.42
  6. Step 6: Final answer
    x = 155,971.92

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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.