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Finding the Fourth Proportional to 135,590.98, 203,388.52 and 51,328.52

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Solution

The fourth proportional to 135,590.98, 203,388.52 and 51,328.52 is: 76,993.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,590.98 : 203,388.52 = 51,328.52 : x
  2. Step 2: Convert to fraction form
    135,590.98/203,388.52 = 51,328.52/x
  3. Step 3: Cross multiply
    135,590.98x = 203,388.52 × 51,328.52
  4. Step 4: Simplify right side
    135,590.98x = 10,439,630,952.68
  5. Step 5: Solve for x
    x = 10,439,630,952.68/135,590.98
  6. Step 6: Final answer
    x = 76,993.55

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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.