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Finding the Fourth Proportional to 273,178.60, 409,767.90 and 168,056.80

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Solution

The fourth proportional to 273,178.60, 409,767.90 and 168,056.80 is: 252,085.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    273,178.60 : 409,767.90 = 168,056.80 : x
  2. Step 2: Convert to fraction form
    273,178.60/409,767.90 = 168,056.80/x
  3. Step 3: Cross multiply
    273,178.60x = 409,767.90 × 168,056.80
  4. Step 4: Simplify right side
    273,178.60x = 68,864,282,016.72
  5. Step 5: Solve for x
    x = 68,864,282,016.72/273,178.60
  6. Step 6: Final answer
    x = 252,085.20

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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.