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Finding the Fourth Proportional to 90,093.37, 124,324.95 and 49,256.72

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Solution

The fourth proportional to 90,093.37, 124,324.95 and 49,256.72 is: 67,972.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,093.37 : 124,324.95 = 49,256.72 : x
  2. Step 2: Convert to fraction form
    90,093.37/124,324.95 = 49,256.72/x
  3. Step 3: Cross multiply
    90,093.37x = 124,324.95 × 49,256.72
  4. Step 4: Simplify right side
    90,093.37x = 6,123,839,251.16
  5. Step 5: Solve for x
    x = 6,123,839,251.16/90,093.37
  6. Step 6: Final answer
    x = 67,972.14

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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.