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Finding the Fourth Proportional to 492,796.61, 739,286.09 and 155,922.06

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Solution

The fourth proportional to 492,796.61, 739,286.09 and 155,922.06 is: 233,911.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    492,796.61 : 739,286.09 = 155,922.06 : x
  2. Step 2: Convert to fraction form
    492,796.61/739,286.09 = 155,922.06/x
  3. Step 3: Cross multiply
    492,796.61x = 739,286.09 × 155,922.06
  4. Step 4: Simplify right side
    492,796.61x = 115,271,012,659.57
  5. Step 5: Solve for x
    x = 115,271,012,659.57/492,796.61
  6. Step 6: Final answer
    x = 233,911.94

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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.