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Finding the Fourth Proportional to 126,765.50, 174,942.93 and 73,055.51

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Solution

The fourth proportional to 126,765.50, 174,942.93 and 73,055.51 is: 100,820.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,765.50 : 174,942.93 = 73,055.51 : x
  2. Step 2: Convert to fraction form
    126,765.50/174,942.93 = 73,055.51/x
  3. Step 3: Cross multiply
    126,765.50x = 174,942.93 × 73,055.51
  4. Step 4: Simplify right side
    126,765.50x = 12,780,544,097.33
  5. Step 5: Solve for x
    x = 12,780,544,097.33/126,765.50
  6. Step 6: Final answer
    x = 100,820.37

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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.