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Finding the Fourth Proportional to 492,453.05, 738,686.96 and 137,468.93

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Solution

The fourth proportional to 492,453.05, 738,686.96 and 137,468.93 is: 206,205.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    492,453.05 : 738,686.96 = 137,468.93 : x
  2. Step 2: Convert to fraction form
    492,453.05/738,686.96 = 137,468.93/x
  3. Step 3: Cross multiply
    492,453.05x = 738,686.96 × 137,468.93
  4. Step 4: Simplify right side
    492,453.05x = 101,546,504,493.11
  5. Step 5: Solve for x
    x = 101,546,504,493.11/492,453.05
  6. Step 6: Final answer
    x = 206,205.45

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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.