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Finding the Fourth Proportional to 163,197.76, 225,129.12 and 108,843.52

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Solution

The fourth proportional to 163,197.76, 225,129.12 and 108,843.52 is: 150,148.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    163,197.76 : 225,129.12 = 108,843.52 : x
  2. Step 2: Convert to fraction form
    163,197.76/225,129.12 = 108,843.52/x
  3. Step 3: Cross multiply
    163,197.76x = 225,129.12 × 108,843.52
  4. Step 4: Simplify right side
    163,197.76x = 24,503,845,875.30
  5. Step 5: Solve for x
    x = 24,503,845,875.30/163,197.76
  6. Step 6: Final answer
    x = 150,148.18

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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.