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Finding the Fourth Proportional to 163,219.60, 244,505.40 and 143,736.40

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Solution

The fourth proportional to 163,219.60, 244,505.40 and 143,736.40 is: 215,319.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    163,219.60 : 244,505.40 = 143,736.40 : x
  2. Step 2: Convert to fraction form
    163,219.60/244,505.40 = 143,736.40/x
  3. Step 3: Cross multiply
    163,219.60x = 244,505.40 × 143,736.40
  4. Step 4: Simplify right side
    163,219.60x = 35,144,325,976.56
  5. Step 5: Solve for x
    x = 35,144,325,976.56/163,219.60
  6. Step 6: Final answer
    x = 215,319.28

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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.