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Finding the Fourth Proportional to 248,056, 372,082.62 and 90,284.46

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Solution

The fourth proportional to 248,056, 372,082.62 and 90,284.46 is: 135,426.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    248,056 : 372,082.62 = 90,284.46 : x
  2. Step 2: Convert to fraction form
    248,056/372,082.62 = 90,284.46/x
  3. Step 3: Cross multiply
    248,056x = 372,082.62 × 90,284.46
  4. Step 4: Simplify right side
    248,056x = 33,593,278,422.09
  5. Step 5: Solve for x
    x = 33,593,278,422.09/248,056
  6. Step 6: Final answer
    x = 135,426.19

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.