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Finding the Fourth Proportional to 120,563.64, 179,708.22 and 111,592.08

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Solution

The fourth proportional to 120,563.64, 179,708.22 and 111,592.08 is: 166,335.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,563.64 : 179,708.22 = 111,592.08 : x
  2. Step 2: Convert to fraction form
    120,563.64/179,708.22 = 111,592.08/x
  3. Step 3: Cross multiply
    120,563.64x = 179,708.22 × 111,592.08
  4. Step 4: Simplify right side
    120,563.64x = 20,054,014,062.90
  5. Step 5: Solve for x
    x = 20,054,014,062.90/120,563.64
  6. Step 6: Final answer
    x = 166,335.51

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.