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Finding the Fourth Proportional to 203,677.60, 305,393.68 and 91,337.52

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Solution

The fourth proportional to 203,677.60, 305,393.68 and 91,337.52 is: 136,951.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,677.60 : 305,393.68 = 91,337.52 : x
  2. Step 2: Convert to fraction form
    203,677.60/305,393.68 = 91,337.52/x
  3. Step 3: Cross multiply
    203,677.60x = 305,393.68 × 91,337.52
  4. Step 4: Simplify right side
    203,677.60x = 27,893,901,354.87
  5. Step 5: Solve for x
    x = 27,893,901,354.87/203,677.60
  6. Step 6: Final answer
    x = 136,951.25

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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.