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Finding the Fourth Proportional to 267,513.78, 369,159.12 and 145,003.53

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Solution

The fourth proportional to 267,513.78, 369,159.12 and 145,003.53 is: 200,099.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    267,513.78 : 369,159.12 = 145,003.53 : x
  2. Step 2: Convert to fraction form
    267,513.78/369,159.12 = 145,003.53/x
  3. Step 3: Cross multiply
    267,513.78x = 369,159.12 × 145,003.53
  4. Step 4: Simplify right side
    267,513.78x = 53,529,375,531.69
  5. Step 5: Solve for x
    x = 53,529,375,531.69/267,513.78
  6. Step 6: Final answer
    x = 200,099.51

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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.