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Finding the Fourth Proportional to 215,651.67, 297,601.25 and 118,858.96

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Solution

The fourth proportional to 215,651.67, 297,601.25 and 118,858.96 is: 164,026.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,651.67 : 297,601.25 = 118,858.96 : x
  2. Step 2: Convert to fraction form
    215,651.67/297,601.25 = 118,858.96/x
  3. Step 3: Cross multiply
    215,651.67x = 297,601.25 × 118,858.96
  4. Step 4: Simplify right side
    215,651.67x = 35,372,575,069.70
  5. Step 5: Solve for x
    x = 35,372,575,069.70/215,651.67
  6. Step 6: Final answer
    x = 164,026.44

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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.