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Finding the Fourth Proportional to 76,626.63, 105,743.11 and 44,362.61

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Solution

The fourth proportional to 76,626.63, 105,743.11 and 44,362.61 is: 61,219.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,626.63 : 105,743.11 = 44,362.61 : x
  2. Step 2: Convert to fraction form
    76,626.63/105,743.11 = 44,362.61/x
  3. Step 3: Cross multiply
    76,626.63x = 105,743.11 × 44,362.61
  4. Step 4: Simplify right side
    76,626.63x = 4,691,040,349.12
  5. Step 5: Solve for x
    x = 4,691,040,349.12/76,626.63
  6. Step 6: Final answer
    x = 61,219.45

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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.