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Finding the Fourth Proportional to 179,449.40, 268,655.70 and 109,465.40

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Solution

The fourth proportional to 179,449.40, 268,655.70 and 109,465.40 is: 163,881.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    179,449.40 : 268,655.70 = 109,465.40 : x
  2. Step 2: Convert to fraction form
    179,449.40/268,655.70 = 109,465.40/x
  3. Step 3: Cross multiply
    179,449.40x = 268,655.70 × 109,465.40
  4. Step 4: Simplify right side
    179,449.40x = 29,408,503,662.78
  5. Step 5: Solve for x
    x = 29,408,503,662.78/179,449.40
  6. Step 6: Final answer
    x = 163,881.87

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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.