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Finding the Fourth Proportional to 273,015.51, 409,149.86 and 173,245.79

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Solution

The fourth proportional to 273,015.51, 409,149.86 and 173,245.79 is: 259,631.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    273,015.51 : 409,149.86 = 173,245.79 : x
  2. Step 2: Convert to fraction form
    273,015.51/409,149.86 = 173,245.79/x
  3. Step 3: Cross multiply
    273,015.51x = 409,149.86 × 173,245.79
  4. Step 4: Simplify right side
    273,015.51x = 70,883,487,812.11
  5. Step 5: Solve for x
    x = 70,883,487,812.11/273,015.51
  6. Step 6: Final answer
    x = 259,631.72

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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.