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Finding the Fourth Proportional to 101,054.58, 139,455.23 and 55,735.48

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Solution

The fourth proportional to 101,054.58, 139,455.23 and 55,735.48 is: 76,914.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,054.58 : 139,455.23 = 55,735.48 : x
  2. Step 2: Convert to fraction form
    101,054.58/139,455.23 = 55,735.48/x
  3. Step 3: Cross multiply
    101,054.58x = 139,455.23 × 55,735.48
  4. Step 4: Simplify right side
    101,054.58x = 7,772,604,182.56
  5. Step 5: Solve for x
    x = 7,772,604,182.56/101,054.58
  6. Step 6: Final answer
    x = 76,914.91

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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.