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Finding the Fourth Proportional to 50,810.27, 70,152.39 and 31,719.11

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Solution

The fourth proportional to 50,810.27, 70,152.39 and 31,719.11 is: 43,793.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    50,810.27 : 70,152.39 = 31,719.11 : x
  2. Step 2: Convert to fraction form
    50,810.27/70,152.39 = 31,719.11/x
  3. Step 3: Cross multiply
    50,810.27x = 70,152.39 × 31,719.11
  4. Step 4: Simplify right side
    50,810.27x = 2,225,171,375.17
  5. Step 5: Solve for x
    x = 2,225,171,375.17/50,810.27
  6. Step 6: Final answer
    x = 43,793.73

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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.