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Finding the Fourth Proportional to 266,777.41, 368,150.15 and 145,921.06

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Solution

The fourth proportional to 266,777.41, 368,150.15 and 145,921.06 is: 201,369.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    266,777.41 : 368,150.15 = 145,921.06 : x
  2. Step 2: Convert to fraction form
    266,777.41/368,150.15 = 145,921.06/x
  3. Step 3: Cross multiply
    266,777.41x = 368,150.15 × 145,921.06
  4. Step 4: Simplify right side
    266,777.41x = 53,720,857,556.80
  5. Step 5: Solve for x
    x = 53,720,857,556.80/266,777.41
  6. Step 6: Final answer
    x = 201,369.59

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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.