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Finding the Fourth Proportional to 147,702.36, 203,828.22 and 80,634.36

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Solution

The fourth proportional to 147,702.36, 203,828.22 and 80,634.36 is: 111,274.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,702.36 : 203,828.22 = 80,634.36 : x
  2. Step 2: Convert to fraction form
    147,702.36/203,828.22 = 80,634.36/x
  3. Step 3: Cross multiply
    147,702.36x = 203,828.22 × 80,634.36
  4. Step 4: Simplify right side
    147,702.36x = 16,435,558,069.64
  5. Step 5: Solve for x
    x = 16,435,558,069.64/147,702.36
  6. Step 6: Final answer
    x = 111,274.85

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.