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Finding the Fourth Proportional to 203,234.40, 304,851.60 and 76,874.40

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Solution

The fourth proportional to 203,234.40, 304,851.60 and 76,874.40 is: 115,311.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,234.40 : 304,851.60 = 76,874.40 : x
  2. Step 2: Convert to fraction form
    203,234.40/304,851.60 = 76,874.40/x
  3. Step 3: Cross multiply
    203,234.40x = 304,851.60 × 76,874.40
  4. Step 4: Simplify right side
    203,234.40x = 23,435,283,839.04
  5. Step 5: Solve for x
    x = 23,435,283,839.04/203,234.40
  6. Step 6: Final answer
    x = 115,311.60

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1.5x scale

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.