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Finding the Fourth Proportional to 90,392.44, 124,749.23 and 50,118.84

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Solution

The fourth proportional to 90,392.44, 124,749.23 and 50,118.84 is: 69,168.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,392.44 : 124,749.23 = 50,118.84 : x
  2. Step 2: Convert to fraction form
    90,392.44/124,749.23 = 50,118.84/x
  3. Step 3: Cross multiply
    90,392.44x = 124,749.23 × 50,118.84
  4. Step 4: Simplify right side
    90,392.44x = 6,252,286,698.49
  5. Step 5: Solve for x
    x = 6,252,286,698.49/90,392.44
  6. Step 6: Final answer
    x = 69,168.25

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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.