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Finding the Fourth Proportional to 223,634.70, 335,840.85 and 118,658.70

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Solution

The fourth proportional to 223,634.70, 335,840.85 and 118,658.70 is: 178,194.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    223,634.70 : 335,840.85 = 118,658.70 : x
  2. Step 2: Convert to fraction form
    223,634.70/335,840.85 = 118,658.70/x
  3. Step 3: Cross multiply
    223,634.70x = 335,840.85 × 118,658.70
  4. Step 4: Simplify right side
    223,634.70x = 39,850,438,667.90
  5. Step 5: Solve for x
    x = 39,850,438,667.90/223,634.70
  6. Step 6: Final answer
    x = 178,194.34

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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.