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Finding the Fourth Proportional to 183,809.64, 275,563.78 and 65,413.56

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Solution

The fourth proportional to 183,809.64, 275,563.78 and 65,413.56 is: 98,066.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    183,809.64 : 275,563.78 = 65,413.56 : x
  2. Step 2: Convert to fraction form
    183,809.64/275,563.78 = 65,413.56/x
  3. Step 3: Cross multiply
    183,809.64x = 275,563.78 × 65,413.56
  4. Step 4: Simplify right side
    183,809.64x = 18,025,607,856.86
  5. Step 5: Solve for x
    x = 18,025,607,856.86/183,809.64
  6. Step 6: Final answer
    x = 98,066.72

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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.