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Finding the Fourth Proportional to 167,441.64, 251,165.70 and 66,237

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Solution

The fourth proportional to 167,441.64, 251,165.70 and 66,237 is: 99,356.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    167,441.64 : 251,165.70 = 66,237 : x
  2. Step 2: Convert to fraction form
    167,441.64/251,165.70 = 66,237/x
  3. Step 3: Cross multiply
    167,441.64x = 251,165.70 × 66,237
  4. Step 4: Simplify right side
    167,441.64x = 16,636,462,470.90
  5. Step 5: Solve for x
    x = 16,636,462,470.90/167,441.64
  6. Step 6: Final answer
    x = 99,356.78

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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.