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Finding the Fourth Proportional to 66,591.96, 91,974.92 and 53,025.42

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Solution

The fourth proportional to 66,591.96, 91,974.92 and 53,025.42 is: 73,237.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,591.96 : 91,974.92 = 53,025.42 : x
  2. Step 2: Convert to fraction form
    66,591.96/91,974.92 = 53,025.42/x
  3. Step 3: Cross multiply
    66,591.96x = 91,974.92 × 53,025.42
  4. Step 4: Simplify right side
    66,591.96x = 4,877,008,497.34
  5. Step 5: Solve for x
    x = 4,877,008,497.34/66,591.96
  6. Step 6: Final answer
    x = 73,237.20

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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.