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Finding the Fourth Proportional to 250,810.12, 376,207.89 and 73,321.30

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Solution

The fourth proportional to 250,810.12, 376,207.89 and 73,321.30 is: 109,979.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    250,810.12 : 376,207.89 = 73,321.30 : x
  2. Step 2: Convert to fraction form
    250,810.12/376,207.89 = 73,321.30/x
  3. Step 3: Cross multiply
    250,810.12x = 376,207.89 × 73,321.30
  4. Step 4: Simplify right side
    250,810.12x = 27,584,051,565.06
  5. Step 5: Solve for x
    x = 27,584,051,565.06/250,810.12
  6. Step 6: Final answer
    x = 109,979.82

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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.