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Finding the Fourth Proportional to 392,163.26, 541,061.89 and 220,055.93

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Solution

The fourth proportional to 392,163.26, 541,061.89 and 220,055.93 is: 303,607.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    392,163.26 : 541,061.89 = 220,055.93 : x
  2. Step 2: Convert to fraction form
    392,163.26/541,061.89 = 220,055.93/x
  3. Step 3: Cross multiply
    392,163.26x = 541,061.89 × 220,055.93
  4. Step 4: Simplify right side
    392,163.26x = 119,063,877,391.51
  5. Step 5: Solve for x
    x = 119,063,877,391.51/392,163.26
  6. Step 6: Final answer
    x = 303,607.93

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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.