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Finding the Fourth Proportional to 250,992.54, 376,638.40 and 91,080.96

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Solution

The fourth proportional to 250,992.54, 376,638.40 and 91,080.96 is: 136,675.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    250,992.54 : 376,638.40 = 91,080.96 : x
  2. Step 2: Convert to fraction form
    250,992.54/376,638.40 = 91,080.96/x
  3. Step 3: Cross multiply
    250,992.54x = 376,638.40 × 91,080.96
  4. Step 4: Simplify right side
    250,992.54x = 34,304,587,044.86
  5. Step 5: Solve for x
    x = 34,304,587,044.86/250,992.54
  6. Step 6: Final answer
    x = 136,675.72

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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.