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Finding the Fourth Proportional to 215,850.32, 297,909.60 and 131,023.92

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Solution

The fourth proportional to 215,850.32, 297,909.60 and 131,023.92 is: 180,834.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,850.32 : 297,909.60 = 131,023.92 : x
  2. Step 2: Convert to fraction form
    215,850.32/297,909.60 = 131,023.92/x
  3. Step 3: Cross multiply
    215,850.32x = 297,909.60 × 131,023.92
  4. Step 4: Simplify right side
    215,850.32x = 39,033,283,597.63
  5. Step 5: Solve for x
    x = 39,033,283,597.63/215,850.32
  6. Step 6: Final answer
    x = 180,834.96

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