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Finding the Fourth Proportional to 235,620.20, 325,352.06 and 218,524.88

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Solution

The fourth proportional to 235,620.20, 325,352.06 and 218,524.88 is: 301,746.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    235,620.20 : 325,352.06 = 218,524.88 : x
  2. Step 2: Convert to fraction form
    235,620.20/325,352.06 = 218,524.88/x
  3. Step 3: Cross multiply
    235,620.20x = 325,352.06 × 218,524.88
  4. Step 4: Simplify right side
    235,620.20x = 71,097,519,869.25
  5. Step 5: Solve for x
    x = 71,097,519,869.25/235,620.20
  6. Step 6: Final answer
    x = 301,746.28

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.