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Finding the Fourth Proportional to 91,082.79, 125,694 and 50,796.60

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Solution

The fourth proportional to 91,082.79, 125,694 and 50,796.60 is: 70,099.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,082.79 : 125,694 = 50,796.60 : x
  2. Step 2: Convert to fraction form
    91,082.79/125,694 = 50,796.60/x
  3. Step 3: Cross multiply
    91,082.79x = 125,694 × 50,796.60
  4. Step 4: Simplify right side
    91,082.79x = 6,384,827,840.40
  5. Step 5: Solve for x
    x = 6,384,827,840.40/91,082.79
  6. Step 6: Final answer
    x = 70,099.17

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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.