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Finding the Fourth Proportional to 126,727.21, 174,922.50 and 73,048.11

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Solution

The fourth proportional to 126,727.21, 174,922.50 and 73,048.11 is: 100,828.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,727.21 : 174,922.50 = 73,048.11 : x
  2. Step 2: Convert to fraction form
    126,727.21/174,922.50 = 73,048.11/x
  3. Step 3: Cross multiply
    126,727.21x = 174,922.50 × 73,048.11
  4. Step 4: Simplify right side
    126,727.21x = 12,777,758,021.48
  5. Step 5: Solve for x
    x = 12,777,758,021.48/126,727.21
  6. Step 6: Final answer
    x = 100,828.84

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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.