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Finding the Fourth Proportional to 95,816, 143,785.51 and 64,261.71

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Solution

The fourth proportional to 95,816, 143,785.51 and 64,261.71 is: 96,433.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    95,816 : 143,785.51 = 64,261.71 : x
  2. Step 2: Convert to fraction form
    95,816/143,785.51 = 64,261.71/x
  3. Step 3: Cross multiply
    95,816x = 143,785.51 × 64,261.71
  4. Step 4: Simplify right side
    95,816x = 9,239,902,745.82
  5. Step 5: Solve for x
    x = 9,239,902,745.82/95,816
  6. Step 6: Final answer
    x = 96,433.82

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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.