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Finding the Fourth Proportional to 79,887.36, 119,831.08 and 27,297.36

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Solution

The fourth proportional to 79,887.36, 119,831.08 and 27,297.36 is: 40,946.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,887.36 : 119,831.08 = 27,297.36 : x
  2. Step 2: Convert to fraction form
    79,887.36/119,831.08 = 27,297.36/x
  3. Step 3: Cross multiply
    79,887.36x = 119,831.08 × 27,297.36
  4. Step 4: Simplify right side
    79,887.36x = 3,271,072,129.95
  5. Step 5: Solve for x
    x = 3,271,072,129.95/79,887.36
  6. Step 6: Final answer
    x = 40,946.05

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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.