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Finding the Fourth Proportional to 189,857.70, 284,860.06 and 174,356.73

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Solution

The fourth proportional to 189,857.70, 284,860.06 and 174,356.73 is: 261,602.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,857.70 : 284,860.06 = 174,356.73 : x
  2. Step 2: Convert to fraction form
    189,857.70/284,860.06 = 174,356.73/x
  3. Step 3: Cross multiply
    189,857.70x = 284,860.06 × 174,356.73
  4. Step 4: Simplify right side
    189,857.70x = 49,667,268,133.31
  5. Step 5: Solve for x
    x = 49,667,268,133.31/189,857.70
  6. Step 6: Final answer
    x = 261,602.60

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.