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Finding the Fourth Proportional to 60,805.28, 91,201.50 and 28,776.68

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Solution

The fourth proportional to 60,805.28, 91,201.50 and 28,776.68 is: 43,161.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,805.28 : 91,201.50 = 28,776.68 : x
  2. Step 2: Convert to fraction form
    60,805.28/91,201.50 = 28,776.68/x
  3. Step 3: Cross multiply
    60,805.28x = 91,201.50 × 28,776.68
  4. Step 4: Simplify right side
    60,805.28x = 2,624,476,381.02
  5. Step 5: Solve for x
    x = 2,624,476,381.02/60,805.28
  6. Step 6: Final answer
    x = 43,161.98

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.