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Finding the Fourth Proportional to 90,468.16, 124,861 and 50,194.88

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Solution

The fourth proportional to 90,468.16, 124,861 and 50,194.88 is: 69,277.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,468.16 : 124,861 = 50,194.88 : x
  2. Step 2: Convert to fraction form
    90,468.16/124,861 = 50,194.88/x
  3. Step 3: Cross multiply
    90,468.16x = 124,861 × 50,194.88
  4. Step 4: Simplify right side
    90,468.16x = 6,267,382,911.68
  5. Step 5: Solve for x
    x = 6,267,382,911.68/90,468.16
  6. Step 6: Final answer
    x = 69,277.22

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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.