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Finding the Fourth Proportional to 252,337.78, 378,467.91 and 92,376.01

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Solution

The fourth proportional to 252,337.78, 378,467.91 and 92,376.01 is: 138,549.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    252,337.78 : 378,467.91 = 92,376.01 : x
  2. Step 2: Convert to fraction form
    252,337.78/378,467.91 = 92,376.01/x
  3. Step 3: Cross multiply
    252,337.78x = 378,467.91 × 92,376.01
  4. Step 4: Simplify right side
    252,337.78x = 34,961,355,438.84
  5. Step 5: Solve for x
    x = 34,961,355,438.84/252,337.78
  6. Step 6: Final answer
    x = 138,549.83

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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.