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Finding the Fourth Proportional to 273,253.81, 376,990.87 and 158,469.12

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Solution

The fourth proportional to 273,253.81, 376,990.87 and 158,469.12 is: 218,629.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    273,253.81 : 376,990.87 = 158,469.12 : x
  2. Step 2: Convert to fraction form
    273,253.81/376,990.87 = 158,469.12/x
  3. Step 3: Cross multiply
    273,253.81x = 376,990.87 × 158,469.12
  4. Step 4: Simplify right side
    273,253.81x = 59,741,411,416.93
  5. Step 5: Solve for x
    x = 59,741,411,416.93/273,253.81
  6. Step 6: Final answer
    x = 218,629.75

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.