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Finding the Fourth Proportional to 101,054.62, 139,453.94 and 58,620.34

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Solution

The fourth proportional to 101,054.62, 139,453.94 and 58,620.34 is: 80,895.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,054.62 : 139,453.94 = 58,620.34 : x
  2. Step 2: Convert to fraction form
    101,054.62/139,453.94 = 58,620.34/x
  3. Step 3: Cross multiply
    101,054.62x = 139,453.94 × 58,620.34
  4. Step 4: Simplify right side
    101,054.62x = 8,174,837,377.14
  5. Step 5: Solve for x
    x = 8,174,837,377.14/101,054.62
  6. Step 6: Final answer
    x = 80,895.24

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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.