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Finding the Fourth Proportional to 90,506.74, 124,914.21 and 50,233.48

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Solution

The fourth proportional to 90,506.74, 124,914.21 and 50,233.48 is: 69,330.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,506.74 : 124,914.21 = 50,233.48 : x
  2. Step 2: Convert to fraction form
    90,506.74/124,914.21 = 50,233.48/x
  3. Step 3: Cross multiply
    90,506.74x = 124,914.21 × 50,233.48
  4. Step 4: Simplify right side
    90,506.74x = 6,274,875,469.75
  5. Step 5: Solve for x
    x = 6,274,875,469.75/90,506.74
  6. Step 6: Final answer
    x = 69,330.48

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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.