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Finding the Fourth Proportional to 325,796.51, 488,759.97 and 112,572.21

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Solution

The fourth proportional to 325,796.51, 488,759.97 and 112,572.21 is: 168,880.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    325,796.51 : 488,759.97 = 112,572.21 : x
  2. Step 2: Convert to fraction form
    325,796.51/488,759.97 = 112,572.21/x
  3. Step 3: Cross multiply
    325,796.51x = 488,759.97 × 112,572.21
  4. Step 4: Simplify right side
    325,796.51x = 55,020,792,237.43
  5. Step 5: Solve for x
    x = 55,020,792,237.43/325,796.51
  6. Step 6: Final answer
    x = 168,880.85

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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.