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Finding the Fourth Proportional to 127,969.84, 191,954.74 and 43,730.73

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Solution

The fourth proportional to 127,969.84, 191,954.74 and 43,730.73 is: 65,596.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,969.84 : 191,954.74 = 43,730.73 : x
  2. Step 2: Convert to fraction form
    127,969.84/191,954.74 = 43,730.73/x
  3. Step 3: Cross multiply
    127,969.84x = 191,954.74 × 43,730.73
  4. Step 4: Simplify right side
    127,969.84x = 8,394,320,797.83
  5. Step 5: Solve for x
    x = 8,394,320,797.83/127,969.84
  6. Step 6: Final answer
    x = 65,596.09

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.