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Finding the Fourth Proportional to 80,486.94, 111,077.01 and 44,677.55

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Solution

The fourth proportional to 80,486.94, 111,077.01 and 44,677.55 is: 61,657.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,486.94 : 111,077.01 = 44,677.55 : x
  2. Step 2: Convert to fraction form
    80,486.94/111,077.01 = 44,677.55/x
  3. Step 3: Cross multiply
    80,486.94x = 111,077.01 × 44,677.55
  4. Step 4: Simplify right side
    80,486.94x = 4,962,648,945.82
  5. Step 5: Solve for x
    x = 4,962,648,945.82/80,486.94
  6. Step 6: Final answer
    x = 61,657.82

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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.