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Finding the Fourth Proportional to 263,655.05, 363,843.86 and 142,796.34

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Solution

The fourth proportional to 263,655.05, 363,843.86 and 142,796.34 is: 197,058.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    263,655.05 : 363,843.86 = 142,796.34 : x
  2. Step 2: Convert to fraction form
    263,655.05/363,843.86 = 142,796.34/x
  3. Step 3: Cross multiply
    263,655.05x = 363,843.86 × 142,796.34
  4. Step 4: Simplify right side
    263,655.05x = 51,955,572,250.42
  5. Step 5: Solve for x
    x = 51,955,572,250.42/263,655.05
  6. Step 6: Final answer
    x = 197,058.89

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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.