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Finding the Fourth Proportional to 492,361.69, 738,666.96 and 137,375.50

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Solution

The fourth proportional to 492,361.69, 738,666.96 and 137,375.50 is: 206,097.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    492,361.69 : 738,666.96 = 137,375.50 : x
  2. Step 2: Convert to fraction form
    492,361.69/738,666.96 = 137,375.50/x
  3. Step 3: Cross multiply
    492,361.69x = 738,666.96 × 137,375.50
  4. Step 4: Simplify right side
    492,361.69x = 101,474,742,963.48
  5. Step 5: Solve for x
    x = 101,474,742,963.48/492,361.69
  6. Step 6: Final answer
    x = 206,097.97

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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.