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Finding the Fourth Proportional to 77,761.68, 116,455.68 and 44,380.54

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Solution

The fourth proportional to 77,761.68, 116,455.68 and 44,380.54 is: 66,464.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,761.68 : 116,455.68 = 44,380.54 : x
  2. Step 2: Convert to fraction form
    77,761.68/116,455.68 = 44,380.54/x
  3. Step 3: Cross multiply
    77,761.68x = 116,455.68 × 44,380.54
  4. Step 4: Simplify right side
    77,761.68x = 5,168,366,152.97
  5. Step 5: Solve for x
    x = 5,168,366,152.97/77,761.68
  6. Step 6: Final answer
    x = 66,464.18

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.