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Finding the Fourth Proportional to 163,475.88, 225,572.24 and 91,842.04

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Solution

The fourth proportional to 163,475.88, 225,572.24 and 91,842.04 is: 126,728.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    163,475.88 : 225,572.24 = 91,842.04 : x
  2. Step 2: Convert to fraction form
    163,475.88/225,572.24 = 91,842.04/x
  3. Step 3: Cross multiply
    163,475.88x = 225,572.24 × 91,842.04
  4. Step 4: Simplify right side
    163,475.88x = 20,717,014,688.97
  5. Step 5: Solve for x
    x = 20,717,014,688.97/163,475.88
  6. Step 6: Final answer
    x = 126,728.27

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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.