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Finding the Fourth Proportional to 179,180.40, 268,655.40 and 74,041.20

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Solution

The fourth proportional to 179,180.40, 268,655.40 and 74,041.20 is: 111,014.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    179,180.40 : 268,655.40 = 74,041.20 : x
  2. Step 2: Convert to fraction form
    179,180.40/268,655.40 = 74,041.20/x
  3. Step 3: Cross multiply
    179,180.40x = 268,655.40 × 74,041.20
  4. Step 4: Simplify right side
    179,180.40x = 19,891,568,202.48
  5. Step 5: Solve for x
    x = 19,891,568,202.48/179,180.40
  6. Step 6: Final answer
    x = 111,014.20

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.