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Finding the Fourth Proportional to 251,233.16, 376,901.66 and 82,763.72

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Solution

The fourth proportional to 251,233.16, 376,901.66 and 82,763.72 is: 124,162.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    251,233.16 : 376,901.66 = 82,763.72 : x
  2. Step 2: Convert to fraction form
    251,233.16/376,901.66 = 82,763.72/x
  3. Step 3: Cross multiply
    251,233.16x = 376,901.66 × 82,763.72
  4. Step 4: Simplify right side
    251,233.16x = 31,193,783,455.78
  5. Step 5: Solve for x
    x = 31,193,783,455.78/251,233.16
  6. Step 6: Final answer
    x = 124,162.68

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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.