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Finding the Fourth Proportional to 204,474.70, 306,712.05 and 56,730.70

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Solution

The fourth proportional to 204,474.70, 306,712.05 and 56,730.70 is: 85,096.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    204,474.70 : 306,712.05 = 56,730.70 : x
  2. Step 2: Convert to fraction form
    204,474.70/306,712.05 = 56,730.70/x
  3. Step 3: Cross multiply
    204,474.70x = 306,712.05 × 56,730.70
  4. Step 4: Simplify right side
    204,474.70x = 17,399,989,294.94
  5. Step 5: Solve for x
    x = 17,399,989,294.94/204,474.70
  6. Step 6: Final answer
    x = 85,096.05

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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.