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Finding the Fourth Proportional to 296,770.80, 445,145.40 and 119,229.60

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Solution

The fourth proportional to 296,770.80, 445,145.40 and 119,229.60 is: 178,840.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    296,770.80 : 445,145.40 = 119,229.60 : x
  2. Step 2: Convert to fraction form
    296,770.80/445,145.40 = 119,229.60/x
  3. Step 3: Cross multiply
    296,770.80x = 445,145.40 × 119,229.60
  4. Step 4: Simplify right side
    296,770.80x = 53,074,507,983.84
  5. Step 5: Solve for x
    x = 53,074,507,983.84/296,770.80
  6. Step 6: Final answer
    x = 178,840.06

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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.