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Finding the Fourth Proportional to 66,795.86, 92,193.46 and 41,640.50

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Solution

The fourth proportional to 66,795.86, 92,193.46 and 41,640.50 is: 57,473.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,795.86 : 92,193.46 = 41,640.50 : x
  2. Step 2: Convert to fraction form
    66,795.86/92,193.46 = 41,640.50/x
  3. Step 3: Cross multiply
    66,795.86x = 92,193.46 × 41,640.50
  4. Step 4: Simplify right side
    66,795.86x = 3,838,981,771.13
  5. Step 5: Solve for x
    x = 3,838,981,771.13/66,795.86
  6. Step 6: Final answer
    x = 57,473.35

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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.