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Finding the Fourth Proportional to 324,573.27, 486,133.93 and 187,628.59

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Solution

The fourth proportional to 324,573.27, 486,133.93 and 187,628.59 is: 281,023.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    324,573.27 : 486,133.93 = 187,628.59 : x
  2. Step 2: Convert to fraction form
    324,573.27/486,133.93 = 187,628.59/x
  3. Step 3: Cross multiply
    324,573.27x = 486,133.93 × 187,628.59
  4. Step 4: Simplify right side
    324,573.27x = 91,212,623,837.06
  5. Step 5: Solve for x
    x = 91,212,623,837.06/324,573.27
  6. Step 6: Final answer
    x = 281,023.21

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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.