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Finding the Fourth Proportional to 136,762.66, 205,504.80 and 73,629.46

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Solution

The fourth proportional to 136,762.66, 205,504.80 and 73,629.46 is: 110,638.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,762.66 : 205,504.80 = 73,629.46 : x
  2. Step 2: Convert to fraction form
    136,762.66/205,504.80 = 73,629.46/x
  3. Step 3: Cross multiply
    136,762.66x = 205,504.80 × 73,629.46
  4. Step 4: Simplify right side
    136,762.66x = 15,131,206,661.54
  5. Step 5: Solve for x
    x = 15,131,206,661.54/136,762.66
  6. Step 6: Final answer
    x = 110,638.44

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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.