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Finding the Fourth Proportional to 77,301.25, 116,478.43 and 63,568.86

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Solution

The fourth proportional to 77,301.25, 116,478.43 and 63,568.86 is: 95,786.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,301.25 : 116,478.43 = 63,568.86 : x
  2. Step 2: Convert to fraction form
    77,301.25/116,478.43 = 63,568.86/x
  3. Step 3: Cross multiply
    77,301.25x = 116,478.43 × 63,568.86
  4. Step 4: Simplify right side
    77,301.25x = 7,404,400,413.97
  5. Step 5: Solve for x
    x = 7,404,400,413.97/77,301.25
  6. Step 6: Final answer
    x = 95,786.30

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.