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Finding the Fourth Proportional to 236,767.62, 355,169.87 and 78,995.96

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Solution

The fourth proportional to 236,767.62, 355,169.87 and 78,995.96 is: 118,500.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    236,767.62 : 355,169.87 = 78,995.96 : x
  2. Step 2: Convert to fraction form
    236,767.62/355,169.87 = 78,995.96/x
  3. Step 3: Cross multiply
    236,767.62x = 355,169.87 × 78,995.96
  4. Step 4: Simplify right side
    236,767.62x = 28,056,982,672.90
  5. Step 5: Solve for x
    x = 28,056,982,672.90/236,767.62
  6. Step 6: Final answer
    x = 118,500.08

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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.