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Finding the Fourth Proportional to 90,446.84, 124,824.96 and 50,162.28

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Solution

The fourth proportional to 90,446.84, 124,824.96 and 50,162.28 is: 69,228.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,446.84 : 124,824.96 = 50,162.28 : x
  2. Step 2: Convert to fraction form
    90,446.84/124,824.96 = 50,162.28/x
  3. Step 3: Cross multiply
    90,446.84x = 124,824.96 × 50,162.28
  4. Step 4: Simplify right side
    90,446.84x = 6,261,504,594.51
  5. Step 5: Solve for x
    x = 6,261,504,594.51/90,446.84
  6. Step 6: Final answer
    x = 69,228.56

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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.