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Finding the Fourth Proportional to 167,493.56, 251,243.58 and 78,698.12

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Solution

The fourth proportional to 167,493.56, 251,243.58 and 78,698.12 is: 118,048.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    167,493.56 : 251,243.58 = 78,698.12 : x
  2. Step 2: Convert to fraction form
    167,493.56/251,243.58 = 78,698.12/x
  3. Step 3: Cross multiply
    167,493.56x = 251,243.58 × 78,698.12
  4. Step 4: Simplify right side
    167,493.56x = 19,772,397,408.07
  5. Step 5: Solve for x
    x = 19,772,397,408.07/167,493.56
  6. Step 6: Final answer
    x = 118,048.70

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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.