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Finding the Fourth Proportional to 90,048, 124,266.24 and 50,304

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Solution

The fourth proportional to 90,048, 124,266.24 and 50,304 is: 69,419.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,048 : 124,266.24 = 50,304 : x
  2. Step 2: Convert to fraction form
    90,048/124,266.24 = 50,304/x
  3. Step 3: Cross multiply
    90,048x = 124,266.24 × 50,304
  4. Step 4: Simplify right side
    90,048x = 6,251,088,936.96
  5. Step 5: Solve for x
    x = 6,251,088,936.96/90,048
  6. Step 6: Final answer
    x = 69,419.52

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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.