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Finding the Fourth Proportional to 78,890.33, 118,247.84 and 60,108.44

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Solution

The fourth proportional to 78,890.33, 118,247.84 and 60,108.44 is: 90,095.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,890.33 : 118,247.84 = 60,108.44 : x
  2. Step 2: Convert to fraction form
    78,890.33/118,247.84 = 60,108.44/x
  3. Step 3: Cross multiply
    78,890.33x = 118,247.84 × 60,108.44
  4. Step 4: Simplify right side
    78,890.33x = 7,107,693,195.77
  5. Step 5: Solve for x
    x = 7,107,693,195.77/78,890.33
  6. Step 6: Final answer
    x = 90,095.87

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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.