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Finding the Fourth Proportional to 60,755.67, 91,153.49 and 28,748.49

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Solution

The fourth proportional to 60,755.67, 91,153.49 and 28,748.49 is: 43,132.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,755.67 : 91,153.49 = 28,748.49 : x
  2. Step 2: Convert to fraction form
    60,755.67/91,153.49 = 28,748.49/x
  3. Step 3: Cross multiply
    60,755.67x = 91,153.49 × 28,748.49
  4. Step 4: Simplify right side
    60,755.67x = 2,620,524,710.16
  5. Step 5: Solve for x
    x = 2,620,524,710.16/60,755.67
  6. Step 6: Final answer
    x = 43,132.18

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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.