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Finding the Fourth Proportional to 494,095.60, 741,143.40 and 161,705.20

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Solution

The fourth proportional to 494,095.60, 741,143.40 and 161,705.20 is: 242,557.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    494,095.60 : 741,143.40 = 161,705.20 : x
  2. Step 2: Convert to fraction form
    494,095.60/741,143.40 = 161,705.20/x
  3. Step 3: Cross multiply
    494,095.60x = 741,143.40 × 161,705.20
  4. Step 4: Simplify right side
    494,095.60x = 119,846,741,725.68
  5. Step 5: Solve for x
    x = 119,846,741,725.68/494,095.60
  6. Step 6: Final answer
    x = 242,557.80

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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.