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Finding the Fourth Proportional to 66,193.50, 91,284.17 and 43,551.71

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Solution

The fourth proportional to 66,193.50, 91,284.17 and 43,551.71 is: 60,059.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,193.50 : 91,284.17 = 43,551.71 : x
  2. Step 2: Convert to fraction form
    66,193.50/91,284.17 = 43,551.71/x
  3. Step 3: Cross multiply
    66,193.50x = 91,284.17 × 43,551.71
  4. Step 4: Simplify right side
    66,193.50x = 3,975,581,025.25
  5. Step 5: Solve for x
    x = 3,975,581,025.25/66,193.50
  6. Step 6: Final answer
    x = 60,059.99

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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.