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Finding the Fourth Proportional to 65,599.54, 98,399.25 and 28,135.42

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Solution

The fourth proportional to 65,599.54, 98,399.25 and 28,135.42 is: 42,203.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,599.54 : 98,399.25 = 28,135.42 : x
  2. Step 2: Convert to fraction form
    65,599.54/98,399.25 = 28,135.42/x
  3. Step 3: Cross multiply
    65,599.54x = 98,399.25 × 28,135.42
  4. Step 4: Simplify right side
    65,599.54x = 2,768,504,226.44
  5. Step 5: Solve for x
    x = 2,768,504,226.44/65,599.54
  6. Step 6: Final answer
    x = 42,203.10

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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.