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Finding the Fourth Proportional to 90,288, 124,597.44 and 50,544

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Solution

The fourth proportional to 90,288, 124,597.44 and 50,544 is: 69,750.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,288 : 124,597.44 = 50,544 : x
  2. Step 2: Convert to fraction form
    90,288/124,597.44 = 50,544/x
  3. Step 3: Cross multiply
    90,288x = 124,597.44 × 50,544
  4. Step 4: Simplify right side
    90,288x = 6,297,653,007.36
  5. Step 5: Solve for x
    x = 6,297,653,007.36/90,288
  6. Step 6: Final answer
    x = 69,750.72

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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.