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Finding the Fourth Proportional to 79,587.88, 119,378.62 and 26,997.48

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Solution

The fourth proportional to 79,587.88, 119,378.62 and 26,997.48 is: 40,495.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,587.88 : 119,378.62 = 26,997.48 : x
  2. Step 2: Convert to fraction form
    79,587.88/119,378.62 = 26,997.48/x
  3. Step 3: Cross multiply
    79,587.88x = 119,378.62 × 26,997.48
  4. Step 4: Simplify right side
    79,587.88x = 3,222,921,905.88
  5. Step 5: Solve for x
    x = 3,222,921,905.88/79,587.88
  6. Step 6: Final answer
    x = 40,495.13

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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.