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Finding the Fourth Proportional to 78,755.63, 108,678.81 and 44,759.62

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Solution

The fourth proportional to 78,755.63, 108,678.81 and 44,759.62 is: 61,766.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,755.63 : 108,678.81 = 44,759.62 : x
  2. Step 2: Convert to fraction form
    78,755.63/108,678.81 = 44,759.62/x
  3. Step 3: Cross multiply
    78,755.63x = 108,678.81 × 44,759.62
  4. Step 4: Simplify right side
    78,755.63x = 4,864,422,541.35
  5. Step 5: Solve for x
    x = 4,864,422,541.35/78,755.63
  6. Step 6: Final answer
    x = 61,766.03

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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.