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Finding the Fourth Proportional to 167,887.84, 251,739.68 and 66,583.28

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Solution

The fourth proportional to 167,887.84, 251,739.68 and 66,583.28 is: 99,838.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    167,887.84 : 251,739.68 = 66,583.28 : x
  2. Step 2: Convert to fraction form
    167,887.84/251,739.68 = 66,583.28/x
  3. Step 3: Cross multiply
    167,887.84x = 251,739.68 × 66,583.28
  4. Step 4: Simplify right side
    167,887.84x = 16,761,653,600.55
  5. Step 5: Solve for x
    x = 16,761,653,600.55/167,887.84
  6. Step 6: Final answer
    x = 99,838.40

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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.