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Finding the Fourth Proportional to 167,653.87, 251,143.44 and 77,569.72

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Solution

The fourth proportional to 167,653.87, 251,143.44 and 77,569.72 is: 116,198.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    167,653.87 : 251,143.44 = 77,569.72 : x
  2. Step 2: Convert to fraction form
    167,653.87/251,143.44 = 77,569.72/x
  3. Step 3: Cross multiply
    167,653.87x = 251,143.44 × 77,569.72
  4. Step 4: Simplify right side
    167,653.87x = 19,481,125,401.89
  5. Step 5: Solve for x
    x = 19,481,125,401.89/167,653.87
  6. Step 6: Final answer
    x = 116,198.48

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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.