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Finding the Fourth Proportional to 288,374.48, 397,953.96 and 161,046.80

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Solution

The fourth proportional to 288,374.48, 397,953.96 and 161,046.80 is: 222,243.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    288,374.48 : 397,953.96 = 161,046.80 : x
  2. Step 2: Convert to fraction form
    288,374.48/397,953.96 = 161,046.80/x
  3. Step 3: Cross multiply
    288,374.48x = 397,953.96 × 161,046.80
  4. Step 4: Simplify right side
    288,374.48x = 64,089,211,805.33
  5. Step 5: Solve for x
    x = 64,089,211,805.33/288,374.48
  6. Step 6: Final answer
    x = 222,243.01

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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.