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Finding the Fourth Proportional to 252,963.52, 349,089.78 and 139,786.27

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Solution

The fourth proportional to 252,963.52, 349,089.78 and 139,786.27 is: 192,905.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    252,963.52 : 349,089.78 = 139,786.27 : x
  2. Step 2: Convert to fraction form
    252,963.52/349,089.78 = 139,786.27/x
  3. Step 3: Cross multiply
    252,963.52x = 349,089.78 × 139,786.27
  4. Step 4: Simplify right side
    252,963.52x = 48,797,958,241.32
  5. Step 5: Solve for x
    x = 48,797,958,241.32/252,963.52
  6. Step 6: Final answer
    x = 192,905.12

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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.