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Finding the Fourth Proportional to 267,790, 369,550.20 and 148,558

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Solution

The fourth proportional to 267,790, 369,550.20 and 148,558 is: 205,010.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    267,790 : 369,550.20 = 148,558 : x
  2. Step 2: Convert to fraction form
    267,790/369,550.20 = 148,558/x
  3. Step 3: Cross multiply
    267,790x = 369,550.20 × 148,558
  4. Step 4: Simplify right side
    267,790x = 54,899,638,611.60
  5. Step 5: Solve for x
    x = 54,899,638,611.60/267,790
  6. Step 6: Final answer
    x = 205,010.04

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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.