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Finding the Fourth Proportional to 104,561.44, 156,753.97 and 45,352.51

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Solution

The fourth proportional to 104,561.44, 156,753.97 and 45,352.51 is: 67,990.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,561.44 : 156,753.97 = 45,352.51 : x
  2. Step 2: Convert to fraction form
    104,561.44/156,753.97 = 45,352.51/x
  3. Step 3: Cross multiply
    104,561.44x = 156,753.97 × 45,352.51
  4. Step 4: Simplify right side
    104,561.44x = 7,109,185,486.70
  5. Step 5: Solve for x
    x = 7,109,185,486.70/104,561.44
  6. Step 6: Final answer
    x = 67,990.51

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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.