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Finding the Fourth Proportional to 251,909.97, 347,667.54 and 144,477.69

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Solution

The fourth proportional to 251,909.97, 347,667.54 and 144,477.69 is: 199,397.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    251,909.97 : 347,667.54 = 144,477.69 : x
  2. Step 2: Convert to fraction form
    251,909.97/347,667.54 = 144,477.69/x
  3. Step 3: Cross multiply
    251,909.97x = 347,667.54 × 144,477.69
  4. Step 4: Simplify right side
    251,909.97x = 50,230,203,067.18
  5. Step 5: Solve for x
    x = 50,230,203,067.18/251,909.97
  6. Step 6: Final answer
    x = 199,397.44

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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.