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Finding the Fourth Proportional to 659,571.48, 989,245.44 and 186,145.92

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Solution

The fourth proportional to 659,571.48, 989,245.44 and 186,145.92 is: 279,187.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    659,571.48 : 989,245.44 = 186,145.92 : x
  2. Step 2: Convert to fraction form
    659,571.48/989,245.44 = 186,145.92/x
  3. Step 3: Cross multiply
    659,571.48x = 989,245.44 × 186,145.92
  4. Step 4: Simplify right side
    659,571.48x = 184,144,002,534.61
  5. Step 5: Solve for x
    x = 184,144,002,534.61/659,571.48
  6. Step 6: Final answer
    x = 279,187.33

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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.