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Finding the Fourth Proportional to 77,567.58, 116,449.83 and 65,954.61

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Solution

The fourth proportional to 77,567.58, 116,449.83 and 65,954.61 is: 99,015.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,567.58 : 116,449.83 = 65,954.61 : x
  2. Step 2: Convert to fraction form
    77,567.58/116,449.83 = 65,954.61/x
  3. Step 3: Cross multiply
    77,567.58x = 116,449.83 × 65,954.61
  4. Step 4: Simplify right side
    77,567.58x = 7,680,403,122.22
  5. Step 5: Solve for x
    x = 7,680,403,122.22/77,567.58
  6. Step 6: Final answer
    x = 99,015.63

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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.