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Finding the Fourth Proportional to 215,650.67, 297,599.87 and 118,857.96

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Solution

The fourth proportional to 215,650.67, 297,599.87 and 118,857.96 is: 164,025.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,650.67 : 297,599.87 = 118,857.96 : x
  2. Step 2: Convert to fraction form
    215,650.67/297,599.87 = 118,857.96/x
  3. Step 3: Cross multiply
    215,650.67x = 297,599.87 × 118,857.96
  4. Step 4: Simplify right side
    215,650.67x = 35,372,113,741.61
  5. Step 5: Solve for x
    x = 35,372,113,741.61/215,650.67
  6. Step 6: Final answer
    x = 164,025.06

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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.