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Finding the Fourth Proportional to 291,930.25, 437,892.75 and 92,250.67

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Solution

The fourth proportional to 291,930.25, 437,892.75 and 92,250.67 is: 138,375.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    291,930.25 : 437,892.75 = 92,250.67 : x
  2. Step 2: Convert to fraction form
    291,930.25/437,892.75 = 92,250.67/x
  3. Step 3: Cross multiply
    291,930.25x = 437,892.75 × 92,250.67
  4. Step 4: Simplify right side
    291,930.25x = 40,395,899,575.64
  5. Step 5: Solve for x
    x = 40,395,899,575.64/291,930.25
  6. Step 6: Final answer
    x = 138,375.18

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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.