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Finding the Fourth Proportional to 179,411.72, 268,863.86 and 99,484.90

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Solution

The fourth proportional to 179,411.72, 268,863.86 and 99,484.90 is: 149,086.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    179,411.72 : 268,863.86 = 99,484.90 : x
  2. Step 2: Convert to fraction form
    179,411.72/268,863.86 = 99,484.90/x
  3. Step 3: Cross multiply
    179,411.72x = 268,863.86 × 99,484.90
  4. Step 4: Simplify right side
    179,411.72x = 26,747,892,383.97
  5. Step 5: Solve for x
    x = 26,747,892,383.97/179,411.72
  6. Step 6: Final answer
    x = 149,086.65

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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.