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Finding the Fourth Proportional to 251,129.74, 376,689.45 and 73,632.82

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Solution

The fourth proportional to 251,129.74, 376,689.45 and 73,632.82 is: 110,447.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    251,129.74 : 376,689.45 = 73,632.82 : x
  2. Step 2: Convert to fraction form
    251,129.74/376,689.45 = 73,632.82/x
  3. Step 3: Cross multiply
    251,129.74x = 376,689.45 × 73,632.82
  4. Step 4: Simplify right side
    251,129.74x = 27,736,706,467.75
  5. Step 5: Solve for x
    x = 27,736,706,467.75/251,129.74
  6. Step 6: Final answer
    x = 110,447.72

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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.