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Finding the Fourth Proportional to 126,750.63, 174,954.78 and 73,071.48

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Solution

The fourth proportional to 126,750.63, 174,954.78 and 73,071.48 is: 100,861.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,750.63 : 174,954.78 = 73,071.48 : x
  2. Step 2: Convert to fraction form
    126,750.63/174,954.78 = 73,071.48/x
  3. Step 3: Cross multiply
    126,750.63x = 174,954.78 × 73,071.48
  4. Step 4: Simplify right side
    126,750.63x = 12,784,204,707.67
  5. Step 5: Solve for x
    x = 12,784,204,707.67/126,750.63
  6. Step 6: Final answer
    x = 100,861.07

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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.