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Finding the Fourth Proportional to 68,903.86, 95,092.02 and 38,280.46

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Solution

The fourth proportional to 68,903.86, 95,092.02 and 38,280.46 is: 52,829.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,903.86 : 95,092.02 = 38,280.46 : x
  2. Step 2: Convert to fraction form
    68,903.86/95,092.02 = 38,280.46/x
  3. Step 3: Cross multiply
    68,903.86x = 95,092.02 × 38,280.46
  4. Step 4: Simplify right side
    68,903.86x = 3,640,166,076.53
  5. Step 5: Solve for x
    x = 3,640,166,076.53/68,903.86
  6. Step 6: Final answer
    x = 52,829.64

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.