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Finding the Fourth Proportional to 252,957.04, 349,067 and 139,772.52

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Solution

The fourth proportional to 252,957.04, 349,067 and 139,772.52 is: 192,878.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    252,957.04 : 349,067 = 139,772.52 : x
  2. Step 2: Convert to fraction form
    252,957.04/349,067 = 139,772.52/x
  3. Step 3: Cross multiply
    252,957.04x = 349,067 × 139,772.52
  4. Step 4: Simplify right side
    252,957.04x = 48,789,974,238.84
  5. Step 5: Solve for x
    x = 48,789,974,238.84/252,957.04
  6. Step 6: Final answer
    x = 192,878.50

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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.