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Finding the Fourth Proportional to 163,270.58, 225,296.07 and 91,658.48

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Solution

The fourth proportional to 163,270.58, 225,296.07 and 91,658.48 is: 126,478.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    163,270.58 : 225,296.07 = 91,658.48 : x
  2. Step 2: Convert to fraction form
    163,270.58/225,296.07 = 91,658.48/x
  3. Step 3: Cross multiply
    163,270.58x = 225,296.07 × 91,658.48
  4. Step 4: Simplify right side
    163,270.58x = 20,650,294,199.69
  5. Step 5: Solve for x
    x = 20,650,294,199.69/163,270.58
  6. Step 6: Final answer
    x = 126,478.97

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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.