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Finding the Fourth Proportional to 282,052.34, 389,229.96 and 152,990.49

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Solution

The fourth proportional to 282,052.34, 389,229.96 and 152,990.49 is: 211,125.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    282,052.34 : 389,229.96 = 152,990.49 : x
  2. Step 2: Convert to fraction form
    282,052.34/389,229.96 = 152,990.49/x
  3. Step 3: Cross multiply
    282,052.34x = 389,229.96 × 152,990.49
  4. Step 4: Simplify right side
    282,052.34x = 59,548,481,286.42
  5. Step 5: Solve for x
    x = 59,548,481,286.42/282,052.34
  6. Step 6: Final answer
    x = 211,125.64

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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.