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Finding the Fourth Proportional to 78,366.38, 108,145.62 and 44,832.38

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Solution

The fourth proportional to 78,366.38, 108,145.62 and 44,832.38 is: 61,868.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,366.38 : 108,145.62 = 44,832.38 : x
  2. Step 2: Convert to fraction form
    78,366.38/108,145.62 = 44,832.38/x
  3. Step 3: Cross multiply
    78,366.38x = 108,145.62 × 44,832.38
  4. Step 4: Simplify right side
    78,366.38x = 4,848,424,990.45
  5. Step 5: Solve for x
    x = 4,848,424,990.45/78,366.38
  6. Step 6: Final answer
    x = 61,868.69

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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.