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Finding the Fourth Proportional to 176,753.50, 243,879.42 and 100,254.31

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Solution

The fourth proportional to 176,753.50, 243,879.42 and 100,254.31 is: 138,328.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    176,753.50 : 243,879.42 = 100,254.31 : x
  2. Step 2: Convert to fraction form
    176,753.50/243,879.42 = 100,254.31/x
  3. Step 3: Cross multiply
    176,753.50x = 243,879.42 × 100,254.31
  4. Step 4: Simplify right side
    176,753.50x = 24,449,962,975.30
  5. Step 5: Solve for x
    x = 24,449,962,975.30/176,753.50
  6. Step 6: Final answer
    x = 138,328.03

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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.