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Finding the Fourth Proportional to 325,681.29, 449,473.32 and 187,865.46

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Solution

The fourth proportional to 325,681.29, 449,473.32 and 187,865.46 is: 259,273.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    325,681.29 : 449,473.32 = 187,865.46 : x
  2. Step 2: Convert to fraction form
    325,681.29/449,473.32 = 187,865.46/x
  3. Step 3: Cross multiply
    325,681.29x = 449,473.32 × 187,865.46
  4. Step 4: Simplify right side
    325,681.29x = 84,440,512,019.53
  5. Step 5: Solve for x
    x = 84,440,512,019.53/325,681.29
  6. Step 6: Final answer
    x = 259,273.45

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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.