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Finding the Fourth Proportional to 167,750.79, 251,687.94 and 77,836.53

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Solution

The fourth proportional to 167,750.79, 251,687.94 and 77,836.53 is: 116,783.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    167,750.79 : 251,687.94 = 77,836.53 : x
  2. Step 2: Convert to fraction form
    167,750.79/251,687.94 = 77,836.53/x
  3. Step 3: Cross multiply
    167,750.79x = 251,687.94 × 77,836.53
  4. Step 4: Simplify right side
    167,750.79x = 19,590,515,892.45
  5. Step 5: Solve for x
    x = 19,590,515,892.45/167,750.79
  6. Step 6: Final answer
    x = 116,783.45

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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.