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Finding the Fourth Proportional to 163,656.86, 225,836.78 and 91,057.82

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Solution

The fourth proportional to 163,656.86, 225,836.78 and 91,057.82 is: 125,654.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    163,656.86 : 225,836.78 = 91,057.82 : x
  2. Step 2: Convert to fraction form
    163,656.86/225,836.78 = 91,057.82/x
  3. Step 3: Cross multiply
    163,656.86x = 225,836.78 × 91,057.82
  4. Step 4: Simplify right side
    163,656.86x = 20,564,204,862.62
  5. Step 5: Solve for x
    x = 20,564,204,862.62/163,656.86
  6. Step 6: Final answer
    x = 125,654.40

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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.