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Finding the Fourth Proportional to 110,504.72, 165,755.87 and 66,143.86

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Solution

The fourth proportional to 110,504.72, 165,755.87 and 66,143.86 is: 99,215.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    110,504.72 : 165,755.87 = 66,143.86 : x
  2. Step 2: Convert to fraction form
    110,504.72/165,755.87 = 66,143.86/x
  3. Step 3: Cross multiply
    110,504.72x = 165,755.87 × 66,143.86
  4. Step 4: Simplify right side
    110,504.72x = 10,963,732,562.39
  5. Step 5: Solve for x
    x = 10,963,732,562.39/110,504.72
  6. Step 6: Final answer
    x = 99,215.06

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.