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Finding the Fourth Proportional to 103,591.48, 155,649.92 and 96,625.84

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Solution

The fourth proportional to 103,591.48, 155,649.92 and 96,625.84 is: 145,183.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,591.48 : 155,649.92 = 96,625.84 : x
  2. Step 2: Convert to fraction form
    103,591.48/155,649.92 = 96,625.84/x
  3. Step 3: Cross multiply
    103,591.48x = 155,649.92 × 96,625.84
  4. Step 4: Simplify right side
    103,591.48x = 15,039,804,265.93
  5. Step 5: Solve for x
    x = 15,039,804,265.93/103,591.48
  6. Step 6: Final answer
    x = 145,183.80

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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.