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Finding the Fourth Proportional to 163,638.64, 225,824.39 and 95,661.42

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Solution

The fourth proportional to 163,638.64, 225,824.39 and 95,661.42 is: 132,014.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    163,638.64 : 225,824.39 = 95,661.42 : x
  2. Step 2: Convert to fraction form
    163,638.64/225,824.39 = 95,661.42/x
  3. Step 3: Cross multiply
    163,638.64x = 225,824.39 × 95,661.42
  4. Step 4: Simplify right side
    163,638.64x = 21,602,681,818.03
  5. Step 5: Solve for x
    x = 21,602,681,818.03/163,638.64
  6. Step 6: Final answer
    x = 132,014.55

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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.