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Finding the Fourth Proportional to 135,203.16, 202,379.52 and 92,835.30

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Solution

The fourth proportional to 135,203.16, 202,379.52 and 92,835.30 is: 138,960.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,203.16 : 202,379.52 = 92,835.30 : x
  2. Step 2: Convert to fraction form
    135,203.16/202,379.52 = 92,835.30/x
  3. Step 3: Cross multiply
    135,203.16x = 202,379.52 × 92,835.30
  4. Step 4: Simplify right side
    135,203.16x = 18,787,963,453.06
  5. Step 5: Solve for x
    x = 18,787,963,453.06/135,203.16
  6. Step 6: Final answer
    x = 138,960.98

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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.