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Finding the Fourth Proportional to 101,066.54, 139,460.67 and 58,616.87

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Solution

The fourth proportional to 101,066.54, 139,460.67 and 58,616.87 is: 80,884.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,066.54 : 139,460.67 = 58,616.87 : x
  2. Step 2: Convert to fraction form
    101,066.54/139,460.67 = 58,616.87/x
  3. Step 3: Cross multiply
    101,066.54x = 139,460.67 × 58,616.87
  4. Step 4: Simplify right side
    101,066.54x = 8,174,747,266.20
  5. Step 5: Solve for x
    x = 8,174,747,266.20/101,066.54
  6. Step 6: Final answer
    x = 80,884.81

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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.