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Finding the Fourth Proportional to 181,919.94, 251,049.68 and 101,347.67

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Solution

The fourth proportional to 181,919.94, 251,049.68 and 101,347.67 is: 139,859.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    181,919.94 : 251,049.68 = 101,347.67 : x
  2. Step 2: Convert to fraction form
    181,919.94/251,049.68 = 101,347.67/x
  3. Step 3: Cross multiply
    181,919.94x = 251,049.68 × 101,347.67
  4. Step 4: Simplify right side
    181,919.94x = 25,443,298,360.26
  5. Step 5: Solve for x
    x = 25,443,298,360.26/181,919.94
  6. Step 6: Final answer
    x = 139,859.87

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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.