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Finding the Fourth Proportional to 66,554.72, 91,845.05 and 36,340.02

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Solution

The fourth proportional to 66,554.72, 91,845.05 and 36,340.02 is: 50,148.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,554.72 : 91,845.05 = 36,340.02 : x
  2. Step 2: Convert to fraction form
    66,554.72/91,845.05 = 36,340.02/x
  3. Step 3: Cross multiply
    66,554.72x = 91,845.05 × 36,340.02
  4. Step 4: Simplify right side
    66,554.72x = 3,337,650,874.41
  5. Step 5: Solve for x
    x = 3,337,650,874.41/66,554.72
  6. Step 6: Final answer
    x = 50,148.98

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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.