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Finding the Fourth Proportional to 114,481.53, 171,821.12 and 79,445.79

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Solution

The fourth proportional to 114,481.53, 171,821.12 and 79,445.79 is: 119,237.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    114,481.53 : 171,821.12 = 79,445.79 : x
  2. Step 2: Convert to fraction form
    114,481.53/171,821.12 = 79,445.79/x
  3. Step 3: Cross multiply
    114,481.53x = 171,821.12 × 79,445.79
  4. Step 4: Simplify right side
    114,481.53x = 13,650,464,219.86
  5. Step 5: Solve for x
    x = 13,650,464,219.86/114,481.53
  6. Step 6: Final answer
    x = 119,237.26

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.