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Finding the Fourth Proportional to 250,956.86, 376,355.44 and 82,438.08

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Solution

The fourth proportional to 250,956.86, 376,355.44 and 82,438.08 is: 123,630.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    250,956.86 : 376,355.44 = 82,438.08 : x
  2. Step 2: Convert to fraction form
    250,956.86/376,355.44 = 82,438.08/x
  3. Step 3: Cross multiply
    250,956.86x = 376,355.44 × 82,438.08
  4. Step 4: Simplify right side
    250,956.86x = 31,026,019,871.16
  5. Step 5: Solve for x
    x = 31,026,019,871.16/250,956.86
  6. Step 6: Final answer
    x = 123,630.89

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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.