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Finding the Fourth Proportional to 101,334.56, 139,842.26 and 55,394.28

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Solution

The fourth proportional to 101,334.56, 139,842.26 and 55,394.28 is: 76,444.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,334.56 : 139,842.26 = 55,394.28 : x
  2. Step 2: Convert to fraction form
    101,334.56/139,842.26 = 55,394.28/x
  3. Step 3: Cross multiply
    101,334.56x = 139,842.26 × 55,394.28
  4. Step 4: Simplify right side
    101,334.56x = 7,746,460,330.09
  5. Step 5: Solve for x
    x = 7,746,460,330.09/101,334.56
  6. Step 6: Final answer
    x = 76,444.41

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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.