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Finding the Fourth Proportional to 71,906.66, 107,908.58 and 25,159.94

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Solution

The fourth proportional to 71,906.66, 107,908.58 and 25,159.94 is: 37,756.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,906.66 : 107,908.58 = 25,159.94 : x
  2. Step 2: Convert to fraction form
    71,906.66/107,908.58 = 25,159.94/x
  3. Step 3: Cross multiply
    71,906.66x = 107,908.58 × 25,159.94
  4. Step 4: Simplify right side
    71,906.66x = 2,714,972,921.64
  5. Step 5: Solve for x
    x = 2,714,972,921.64/71,906.66
  6. Step 6: Final answer
    x = 37,756.91

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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.