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Finding the Fourth Proportional to 272,739.36, 409,127.52 and 92,751.52

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Solution

The fourth proportional to 272,739.36, 409,127.52 and 92,751.52 is: 139,133.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    272,739.36 : 409,127.52 = 92,751.52 : x
  2. Step 2: Convert to fraction form
    272,739.36/409,127.52 = 92,751.52/x
  3. Step 3: Cross multiply
    272,739.36x = 409,127.52 × 92,751.52
  4. Step 4: Simplify right side
    272,739.36x = 37,947,199,353.83
  5. Step 5: Solve for x
    x = 37,947,199,353.83/272,739.36
  6. Step 6: Final answer
    x = 139,133.56

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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.