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Finding the Fourth Proportional to 181,796.60, 250,889.64 and 109,221.68

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Solution

The fourth proportional to 181,796.60, 250,889.64 and 109,221.68 is: 150,732.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    181,796.60 : 250,889.64 = 109,221.68 : x
  2. Step 2: Convert to fraction form
    181,796.60/250,889.64 = 109,221.68/x
  3. Step 3: Cross multiply
    181,796.60x = 250,889.64 × 109,221.68
  4. Step 4: Simplify right side
    181,796.60x = 27,402,587,975.40
  5. Step 5: Solve for x
    x = 27,402,587,975.40/181,796.60
  6. Step 6: Final answer
    x = 150,732.13

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.