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Finding the Fourth Proportional to 163,601.88, 225,764.76 and 91,004.40

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Solution

The fourth proportional to 163,601.88, 225,764.76 and 91,004.40 is: 125,582.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    163,601.88 : 225,764.76 = 91,004.40 : x
  2. Step 2: Convert to fraction form
    163,601.88/225,764.76 = 91,004.40/x
  3. Step 3: Cross multiply
    163,601.88x = 225,764.76 × 91,004.40
  4. Step 4: Simplify right side
    163,601.88x = 20,545,586,524.94
  5. Step 5: Solve for x
    x = 20,545,586,524.94/163,601.88
  6. Step 6: Final answer
    x = 125,582.83

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1.5x scale

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.