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Finding the Fourth Proportional to 104,191.83, 143,770.96 and 65,883.79

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Solution

The fourth proportional to 104,191.83, 143,770.96 and 65,883.79 is: 90,910.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,191.83 : 143,770.96 = 65,883.79 : x
  2. Step 2: Convert to fraction form
    104,191.83/143,770.96 = 65,883.79/x
  3. Step 3: Cross multiply
    104,191.83x = 143,770.96 × 65,883.79
  4. Step 4: Simplify right side
    104,191.83x = 9,472,175,212.60
  5. Step 5: Solve for x
    x = 9,472,175,212.60/104,191.83
  6. Step 6: Final answer
    x = 90,910.92

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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.