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Finding the Fourth Proportional to 114,409.62, 157,791.66 and 80,530.26

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Solution

The fourth proportional to 114,409.62, 157,791.66 and 80,530.26 is: 111,065.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    114,409.62 : 157,791.66 = 80,530.26 : x
  2. Step 2: Convert to fraction form
    114,409.62/157,791.66 = 80,530.26/x
  3. Step 3: Cross multiply
    114,409.62x = 157,791.66 × 80,530.26
  4. Step 4: Simplify right side
    114,409.62x = 12,707,003,405.63
  5. Step 5: Solve for x
    x = 12,707,003,405.63/114,409.62
  6. Step 6: Final answer
    x = 111,065.86

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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.