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Finding the Fourth Proportional to 230,503.68, 345,755.58 and 72,744.48

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Solution

The fourth proportional to 230,503.68, 345,755.58 and 72,744.48 is: 109,116.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    230,503.68 : 345,755.58 = 72,744.48 : x
  2. Step 2: Convert to fraction form
    230,503.68/345,755.58 = 72,744.48/x
  3. Step 3: Cross multiply
    230,503.68x = 345,755.58 × 72,744.48
  4. Step 4: Simplify right side
    230,503.68x = 25,151,809,874.20
  5. Step 5: Solve for x
    x = 25,151,809,874.20/230,503.68
  6. Step 6: Final answer
    x = 109,116.74

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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.