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Finding the Fourth Proportional to 146,791.88, 202,572.86 and 79,723.88

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Solution

The fourth proportional to 146,791.88, 202,572.86 and 79,723.88 is: 110,018.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    146,791.88 : 202,572.86 = 79,723.88 : x
  2. Step 2: Convert to fraction form
    146,791.88/202,572.86 = 79,723.88/x
  3. Step 3: Cross multiply
    146,791.88x = 202,572.86 × 79,723.88
  4. Step 4: Simplify right side
    146,791.88x = 16,149,892,970.41
  5. Step 5: Solve for x
    x = 16,149,892,970.41/146,791.88
  6. Step 6: Final answer
    x = 110,018.98

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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.