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Finding the Fourth Proportional to 103,791.92, 143,208.14 and 58,460.85

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Solution

The fourth proportional to 103,791.92, 143,208.14 and 58,460.85 is: 80,662.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,791.92 : 143,208.14 = 58,460.85 : x
  2. Step 2: Convert to fraction form
    103,791.92/143,208.14 = 58,460.85/x
  3. Step 3: Cross multiply
    103,791.92x = 143,208.14 × 58,460.85
  4. Step 4: Simplify right side
    103,791.92x = 8,372,069,299.01
  5. Step 5: Solve for x
    x = 8,372,069,299.01/103,791.92
  6. Step 6: Final answer
    x = 80,662.06

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1.5x scale

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.