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Finding the Fourth Proportional to 121,655.44, 167,963.50 and 108,886.52

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Solution

The fourth proportional to 121,655.44, 167,963.50 and 108,886.52 is: 150,334.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,655.44 : 167,963.50 = 108,886.52 : x
  2. Step 2: Convert to fraction form
    121,655.44/167,963.50 = 108,886.52/x
  3. Step 3: Cross multiply
    121,655.44x = 167,963.50 × 108,886.52
  4. Step 4: Simplify right side
    121,655.44x = 18,288,961,002.02
  5. Step 5: Solve for x
    x = 18,288,961,002.02/121,655.44
  6. Step 6: Final answer
    x = 150,334.10

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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.