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Finding the Fourth Proportional to 267,991.17, 369,832.43 and 147,137.55

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Solution

The fourth proportional to 267,991.17, 369,832.43 and 147,137.55 is: 203,052.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    267,991.17 : 369,832.43 = 147,137.55 : x
  2. Step 2: Convert to fraction form
    267,991.17/369,832.43 = 147,137.55/x
  3. Step 3: Cross multiply
    267,991.17x = 369,832.43 × 147,137.55
  4. Step 4: Simplify right side
    267,991.17x = 54,416,236,925.06
  5. Step 5: Solve for x
    x = 54,416,236,925.06/267,991.17
  6. Step 6: Final answer
    x = 203,052.35

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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.