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Finding the Fourth Proportional to 167,868.84, 251,679.96 and 79,072.32

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Solution

The fourth proportional to 167,868.84, 251,679.96 and 79,072.32 is: 118,550.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    167,868.84 : 251,679.96 = 79,072.32 : x
  2. Step 2: Convert to fraction form
    167,868.84/251,679.96 = 79,072.32/x
  3. Step 3: Cross multiply
    167,868.84x = 251,679.96 × 79,072.32
  4. Step 4: Simplify right side
    167,868.84x = 19,900,918,334.71
  5. Step 5: Solve for x
    x = 19,900,918,334.71/167,868.84
  6. Step 6: Final answer
    x = 118,550.40

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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.