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Finding the Fourth Proportional to 83,243, 124,864.62 and 33,995

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Solution

The fourth proportional to 83,243, 124,864.62 and 33,995 is: 50,992.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,243 : 124,864.62 = 33,995 : x
  2. Step 2: Convert to fraction form
    83,243/124,864.62 = 33,995/x
  3. Step 3: Cross multiply
    83,243x = 124,864.62 × 33,995
  4. Step 4: Simplify right side
    83,243x = 4,244,772,756.90
  5. Step 5: Solve for x
    x = 4,244,772,756.90/83,243
  6. Step 6: Final answer
    x = 50,992.55

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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.