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Finding the Fourth Proportional to 659,857.41, 989,777.48 and 161,225.73

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Solution

The fourth proportional to 659,857.41, 989,777.48 and 161,225.73 is: 241,836.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    659,857.41 : 989,777.48 = 161,225.73 : x
  2. Step 2: Convert to fraction form
    659,857.41/989,777.48 = 161,225.73/x
  3. Step 3: Cross multiply
    659,857.41x = 989,777.48 × 161,225.73
  4. Step 4: Simplify right side
    659,857.41x = 159,577,595,944.43
  5. Step 5: Solve for x
    x = 159,577,595,944.43/659,857.41
  6. Step 6: Final answer
    x = 241,836.48

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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.