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Finding the Fourth Proportional to 196,980.48, 271,832.64 and 107,556.48

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Solution

The fourth proportional to 196,980.48, 271,832.64 and 107,556.48 is: 148,427.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    196,980.48 : 271,832.64 = 107,556.48 : x
  2. Step 2: Convert to fraction form
    196,980.48/271,832.64 = 107,556.48/x
  3. Step 3: Cross multiply
    196,980.48x = 271,832.64 × 107,556.48
  4. Step 4: Simplify right side
    196,980.48x = 29,237,361,907.51
  5. Step 5: Solve for x
    x = 29,237,361,907.51/196,980.48
  6. Step 6: Final answer
    x = 148,427.71

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1.5x scale

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.