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Finding the Fourth Proportional to 492,336.72, 738,629.62 and 137,350.47

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Solution

The fourth proportional to 492,336.72, 738,629.62 and 137,350.47 is: 206,060.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    492,336.72 : 738,629.62 = 137,350.47 : x
  2. Step 2: Convert to fraction form
    492,336.72/738,629.62 = 137,350.47/x
  3. Step 3: Cross multiply
    492,336.72x = 738,629.62 × 137,350.47
  4. Step 4: Simplify right side
    492,336.72x = 101,451,127,889.41
  5. Step 5: Solve for x
    x = 101,451,127,889.41/492,336.72
  6. Step 6: Final answer
    x = 206,060.45

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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.