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Finding the Fourth Proportional to 91,077.76, 125,687.86 and 50,794.08

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Solution

The fourth proportional to 91,077.76, 125,687.86 and 50,794.08 is: 70,096.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,077.76 : 125,687.86 = 50,794.08 : x
  2. Step 2: Convert to fraction form
    91,077.76/125,687.86 = 50,794.08/x
  3. Step 3: Cross multiply
    91,077.76x = 125,687.86 × 50,794.08
  4. Step 4: Simplify right side
    91,077.76x = 6,384,199,215.87
  5. Step 5: Solve for x
    x = 6,384,199,215.87/91,077.76
  6. Step 6: Final answer
    x = 70,096.14

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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.