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Finding the Fourth Proportional to 99,757.52, 149,704.04 and 40,603.94

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Solution

The fourth proportional to 99,757.52, 149,704.04 and 40,603.94 is: 60,933.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,757.52 : 149,704.04 = 40,603.94 : x
  2. Step 2: Convert to fraction form
    99,757.52/149,704.04 = 40,603.94/x
  3. Step 3: Cross multiply
    99,757.52x = 149,704.04 × 40,603.94
  4. Step 4: Simplify right side
    99,757.52x = 6,078,573,857.92
  5. Step 5: Solve for x
    x = 6,078,573,857.92/99,757.52
  6. Step 6: Final answer
    x = 60,933.49

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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.