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Finding the Fourth Proportional to 91,079.81, 125,689.89 and 50,793.62

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Solution

The fourth proportional to 91,079.81, 125,689.89 and 50,793.62 is: 70,095.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,079.81 : 125,689.89 = 50,793.62 : x
  2. Step 2: Convert to fraction form
    91,079.81/125,689.89 = 50,793.62/x
  3. Step 3: Cross multiply
    91,079.81x = 125,689.89 × 50,793.62
  4. Step 4: Simplify right side
    91,079.81x = 6,384,243,882.05
  5. Step 5: Solve for x
    x = 6,384,243,882.05/91,079.81
  6. Step 6: Final answer
    x = 70,095.05

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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.