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Finding the Fourth Proportional to 269,987.34, 405,068.49 and 92,495.88

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Solution

The fourth proportional to 269,987.34, 405,068.49 and 92,495.88 is: 138,773.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    269,987.34 : 405,068.49 = 92,495.88 : x
  2. Step 2: Convert to fraction form
    269,987.34/405,068.49 = 92,495.88/x
  3. Step 3: Cross multiply
    269,987.34x = 405,068.49 × 92,495.88
  4. Step 4: Simplify right side
    269,987.34x = 37,467,166,442.82
  5. Step 5: Solve for x
    x = 37,467,166,442.82/269,987.34
  6. Step 6: Final answer
    x = 138,773.79

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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.