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Finding the Fourth Proportional to 101,181.33, 139,630.44 and 55,859.37

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Solution

The fourth proportional to 101,181.33, 139,630.44 and 55,859.37 is: 77,086.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,181.33 : 139,630.44 = 55,859.37 : x
  2. Step 2: Convert to fraction form
    101,181.33/139,630.44 = 55,859.37/x
  3. Step 3: Cross multiply
    101,181.33x = 139,630.44 × 55,859.37
  4. Step 4: Simplify right side
    101,181.33x = 7,799,668,411.22
  5. Step 5: Solve for x
    x = 7,799,668,411.22/101,181.33
  6. Step 6: Final answer
    x = 77,086.04

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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.