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Finding the Fourth Proportional to 90,235.22, 124,524.84 and 49,951.76

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Solution

The fourth proportional to 90,235.22, 124,524.84 and 49,951.76 is: 68,933.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,235.22 : 124,524.84 = 49,951.76 : x
  2. Step 2: Convert to fraction form
    90,235.22/124,524.84 = 49,951.76/x
  3. Step 3: Cross multiply
    90,235.22x = 124,524.84 × 49,951.76
  4. Step 4: Simplify right side
    90,235.22x = 6,220,234,921.72
  5. Step 5: Solve for x
    x = 6,220,234,921.72/90,235.22
  6. Step 6: Final answer
    x = 68,933.56

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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.