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Finding the Fourth Proportional to 73,755.19, 101,782.02 and 40,221.19

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Solution

The fourth proportional to 73,755.19, 101,782.02 and 40,221.19 is: 55,505.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,755.19 : 101,782.02 = 40,221.19 : x
  2. Step 2: Convert to fraction form
    73,755.19/101,782.02 = 40,221.19/x
  3. Step 3: Cross multiply
    73,755.19x = 101,782.02 × 40,221.19
  4. Step 4: Simplify right side
    73,755.19x = 4,093,793,965.00
  5. Step 5: Solve for x
    x = 4,093,793,965.00/73,755.19
  6. Step 6: Final answer
    x = 55,505.16

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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.