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Finding the Fourth Proportional to 135,656.16, 203,544.72 and 52,556.64

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Solution

The fourth proportional to 135,656.16, 203,544.72 and 52,556.64 is: 78,858.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,656.16 : 203,544.72 = 52,556.64 : x
  2. Step 2: Convert to fraction form
    135,656.16/203,544.72 = 52,556.64/x
  3. Step 3: Cross multiply
    135,656.16x = 203,544.72 × 52,556.64
  4. Step 4: Simplify right side
    135,656.16x = 10,697,626,572.94
  5. Step 5: Solve for x
    x = 10,697,626,572.94/135,656.16
  6. Step 6: Final answer
    x = 78,858.39

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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.