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Finding the Fourth Proportional to 103,861.68, 155,770.64 and 37,305.60

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Solution

The fourth proportional to 103,861.68, 155,770.64 and 37,305.60 is: 55,950.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,861.68 : 155,770.64 = 37,305.60 : x
  2. Step 2: Convert to fraction form
    103,861.68/155,770.64 = 37,305.60/x
  3. Step 3: Cross multiply
    103,861.68x = 155,770.64 × 37,305.60
  4. Step 4: Simplify right side
    103,861.68x = 5,811,117,187.58
  5. Step 5: Solve for x
    x = 5,811,117,187.58/103,861.68
  6. Step 6: Final answer
    x = 55,950.54

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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.