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Finding the Fourth Proportional to 136,762.47, 205,504.52 and 73,629.27

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Solution

The fourth proportional to 136,762.47, 205,504.52 and 73,629.27 is: 110,638.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,762.47 : 205,504.52 = 73,629.27 : x
  2. Step 2: Convert to fraction form
    136,762.47/205,504.52 = 73,629.27/x
  3. Step 3: Cross multiply
    136,762.47x = 205,504.52 × 73,629.27
  4. Step 4: Simplify right side
    136,762.47x = 15,131,147,421.15
  5. Step 5: Solve for x
    x = 15,131,147,421.15/136,762.47
  6. Step 6: Final answer
    x = 110,638.16

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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.