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Finding the Fourth Proportional to 80,608, 111,230.20 and 46,611.36

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Solution

The fourth proportional to 80,608, 111,230.20 and 46,611.36 is: 64,318.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,608 : 111,230.20 = 46,611.36 : x
  2. Step 2: Convert to fraction form
    80,608/111,230.20 = 46,611.36/x
  3. Step 3: Cross multiply
    80,608x = 111,230.20 × 46,611.36
  4. Step 4: Simplify right side
    80,608x = 5,184,590,895.07
  5. Step 5: Solve for x
    x = 5,184,590,895.07/80,608
  6. Step 6: Final answer
    x = 64,318.57

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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.