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Finding the Fourth Proportional to 114,051.26, 171,120.72 and 80,349.68

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Solution

The fourth proportional to 114,051.26, 171,120.72 and 80,349.68 is: 120,555.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    114,051.26 : 171,120.72 = 80,349.68 : x
  2. Step 2: Convert to fraction form
    114,051.26/171,120.72 = 80,349.68/x
  3. Step 3: Cross multiply
    114,051.26x = 171,120.72 × 80,349.68
  4. Step 4: Simplify right side
    114,051.26x = 13,749,495,093.37
  5. Step 5: Solve for x
    x = 13,749,495,093.37/114,051.26
  6. Step 6: Final answer
    x = 120,555.40

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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.