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Finding the Fourth Proportional to 235,538.88, 353,319.25 and 75,621.33

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Solution

The fourth proportional to 235,538.88, 353,319.25 and 75,621.33 is: 113,435.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    235,538.88 : 353,319.25 = 75,621.33 : x
  2. Step 2: Convert to fraction form
    235,538.88/353,319.25 = 75,621.33/x
  3. Step 3: Cross multiply
    235,538.88x = 353,319.25 × 75,621.33
  4. Step 4: Simplify right side
    235,538.88x = 26,718,471,599.60
  5. Step 5: Solve for x
    x = 26,718,471,599.60/235,538.88
  6. Step 6: Final answer
    x = 113,435.50

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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.