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Finding the Fourth Proportional to 268,755.09, 370,872.72 and 147,885.07

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Solution

The fourth proportional to 268,755.09, 370,872.72 and 147,885.07 is: 204,076.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    268,755.09 : 370,872.72 = 147,885.07 : x
  2. Step 2: Convert to fraction form
    268,755.09/370,872.72 = 147,885.07/x
  3. Step 3: Cross multiply
    268,755.09x = 370,872.72 × 147,885.07
  4. Step 4: Simplify right side
    268,755.09x = 54,846,538,158.29
  5. Step 5: Solve for x
    x = 54,846,538,158.29/268,755.09
  6. Step 6: Final answer
    x = 204,076.28

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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.