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Finding the Fourth Proportional to 90,422.87, 124,796.48 and 50,145.59

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Solution

The fourth proportional to 90,422.87, 124,796.48 and 50,145.59 is: 69,208.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,422.87 : 124,796.48 = 50,145.59 : x
  2. Step 2: Convert to fraction form
    90,422.87/124,796.48 = 50,145.59/x
  3. Step 3: Cross multiply
    90,422.87x = 124,796.48 × 50,145.59
  4. Step 4: Simplify right side
    90,422.87x = 6,257,993,119.52
  5. Step 5: Solve for x
    x = 6,257,993,119.52/90,422.87
  6. Step 6: Final answer
    x = 69,208.08

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.