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Finding the Fourth Proportional to 95,755.86, 131,918.31 and 66,634.16

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Solution

The fourth proportional to 95,755.86, 131,918.31 and 66,634.16 is: 91,798.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    95,755.86 : 131,918.31 = 66,634.16 : x
  2. Step 2: Convert to fraction form
    95,755.86/131,918.31 = 66,634.16/x
  3. Step 3: Cross multiply
    95,755.86x = 131,918.31 × 66,634.16
  4. Step 4: Simplify right side
    95,755.86x = 8,790,265,445.67
  5. Step 5: Solve for x
    x = 8,790,265,445.67/95,755.86
  6. Step 6: Final answer
    x = 91,798.72

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1.5x scale

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.