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Finding the Fourth Proportional to 204,318.88, 306,478.32 and 56,574.88

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Solution

The fourth proportional to 204,318.88, 306,478.32 and 56,574.88 is: 84,862.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    204,318.88 : 306,478.32 = 56,574.88 : x
  2. Step 2: Convert to fraction form
    204,318.88/306,478.32 = 56,574.88/x
  3. Step 3: Cross multiply
    204,318.88x = 306,478.32 × 56,574.88
  4. Step 4: Simplify right side
    204,318.88x = 17,338,972,361.34
  5. Step 5: Solve for x
    x = 17,338,972,361.34/204,318.88
  6. Step 6: Final answer
    x = 84,862.31

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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.