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Finding the Fourth Proportional to 236,764.62, 355,165.36 and 78,992.96

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Solution

The fourth proportional to 236,764.62, 355,165.36 and 78,992.96 is: 118,495.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    236,764.62 : 355,165.36 = 78,992.96 : x
  2. Step 2: Convert to fraction form
    236,764.62/355,165.36 = 78,992.96/x
  3. Step 3: Cross multiply
    236,764.62x = 355,165.36 × 78,992.96
  4. Step 4: Simplify right side
    236,764.62x = 28,055,561,102.56
  5. Step 5: Solve for x
    x = 28,055,561,102.56/236,764.62
  6. Step 6: Final answer
    x = 118,495.58

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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.