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Finding the Fourth Proportional to 103,744.41, 155,493.60 and 93,164.80

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Solution

The fourth proportional to 103,744.41, 155,493.60 and 93,164.80 is: 139,636.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,744.41 : 155,493.60 = 93,164.80 : x
  2. Step 2: Convert to fraction form
    103,744.41/155,493.60 = 93,164.80/x
  3. Step 3: Cross multiply
    103,744.41x = 155,493.60 × 93,164.80
  4. Step 4: Simplify right side
    103,744.41x = 14,486,530,145.28
  5. Step 5: Solve for x
    x = 14,486,530,145.28/103,744.41
  6. Step 6: Final answer
    x = 139,636.73

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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.