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Finding the Fourth Proportional to 90,380.95, 124,723.08 and 49,544.24

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Solution

The fourth proportional to 90,380.95, 124,723.08 and 49,544.24 is: 68,369.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,380.95 : 124,723.08 = 49,544.24 : x
  2. Step 2: Convert to fraction form
    90,380.95/124,723.08 = 49,544.24/x
  3. Step 3: Cross multiply
    90,380.95x = 124,723.08 × 49,544.24
  4. Step 4: Simplify right side
    90,380.95x = 6,179,309,585.44
  5. Step 5: Solve for x
    x = 6,179,309,585.44/90,380.95
  6. Step 6: Final answer
    x = 68,369.60

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1.5x scale

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.