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Finding the Fourth Proportional to 235,121.22, 324,464.49 and 127,692.90

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Solution

The fourth proportional to 235,121.22, 324,464.49 and 127,692.90 is: 176,214.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    235,121.22 : 324,464.49 = 127,692.90 : x
  2. Step 2: Convert to fraction form
    235,121.22/324,464.49 = 127,692.90/x
  3. Step 3: Cross multiply
    235,121.22x = 324,464.49 × 127,692.90
  4. Step 4: Simplify right side
    235,121.22x = 41,431,811,675.12
  5. Step 5: Solve for x
    x = 41,431,811,675.12/235,121.22
  6. Step 6: Final answer
    x = 176,214.68

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1.5x scale

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.