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Finding the Fourth Proportional to 492,759.96, 739,139.40 and 118,782.96

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Solution

The fourth proportional to 492,759.96, 739,139.40 and 118,782.96 is: 178,174.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    492,759.96 : 739,139.40 = 118,782.96 : x
  2. Step 2: Convert to fraction form
    492,759.96/739,139.40 = 118,782.96/x
  3. Step 3: Cross multiply
    492,759.96x = 739,139.40 × 118,782.96
  4. Step 4: Simplify right side
    492,759.96x = 87,797,165,784.62
  5. Step 5: Solve for x
    x = 87,797,165,784.62/492,759.96
  6. Step 6: Final answer
    x = 178,174.31

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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.