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Finding the Fourth Proportional to 78,817.92, 118,200.66 and 25,497.24

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Solution

The fourth proportional to 78,817.92, 118,200.66 and 25,497.24 is: 38,237.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,817.92 : 118,200.66 = 25,497.24 : x
  2. Step 2: Convert to fraction form
    78,817.92/118,200.66 = 25,497.24/x
  3. Step 3: Cross multiply
    78,817.92x = 118,200.66 × 25,497.24
  4. Step 4: Simplify right side
    78,817.92x = 3,013,790,596.18
  5. Step 5: Solve for x
    x = 3,013,790,596.18/78,817.92
  6. Step 6: Final answer
    x = 38,237.38

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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.