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Finding the Fourth Proportional to 256,383.01, 353,740.12 and 143,203.33

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Solution

The fourth proportional to 256,383.01, 353,740.12 and 143,203.33 is: 197,582.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    256,383.01 : 353,740.12 = 143,203.33 : x
  2. Step 2: Convert to fraction form
    256,383.01/353,740.12 = 143,203.33/x
  3. Step 3: Cross multiply
    256,383.01x = 353,740.12 × 143,203.33
  4. Step 4: Simplify right side
    256,383.01x = 50,656,763,138.60
  5. Step 5: Solve for x
    x = 50,656,763,138.60/256,383.01
  6. Step 6: Final answer
    x = 197,582.37

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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.