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Finding the Fourth Proportional to 270,615.31, 373,439.93 and 149,761.69

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Solution

The fourth proportional to 270,615.31, 373,439.93 and 149,761.69 is: 206,666.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    270,615.31 : 373,439.93 = 149,761.69 : x
  2. Step 2: Convert to fraction form
    270,615.31/373,439.93 = 149,761.69/x
  3. Step 3: Cross multiply
    270,615.31x = 373,439.93 × 149,761.69
  4. Step 4: Simplify right side
    270,615.31x = 55,926,995,030.28
  5. Step 5: Solve for x
    x = 55,926,995,030.28/270,615.31
  6. Step 6: Final answer
    x = 206,666.04

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.