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Finding the Fourth Proportional to 135,603.88, 203,439.70 and 95,700.77

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Solution

The fourth proportional to 135,603.88, 203,439.70 and 95,700.77 is: 143,575.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,603.88 : 203,439.70 = 95,700.77 : x
  2. Step 2: Convert to fraction form
    135,603.88/203,439.70 = 95,700.77/x
  3. Step 3: Cross multiply
    135,603.88x = 203,439.70 × 95,700.77
  4. Step 4: Simplify right side
    135,603.88x = 19,469,335,968.66
  5. Step 5: Solve for x
    x = 19,469,335,968.66/135,603.88
  6. Step 6: Final answer
    x = 143,575.07

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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.