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Finding the Fourth Proportional to 139,454.64, 192,450.24 and 75,796.52

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Solution

The fourth proportional to 139,454.64, 192,450.24 and 75,796.52 is: 104,600.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,454.64 : 192,450.24 = 75,796.52 : x
  2. Step 2: Convert to fraction form
    139,454.64/192,450.24 = 75,796.52/x
  3. Step 3: Cross multiply
    139,454.64x = 192,450.24 × 75,796.52
  4. Step 4: Simplify right side
    139,454.64x = 14,587,058,465.16
  5. Step 5: Solve for x
    x = 14,587,058,465.16/139,454.64
  6. Step 6: Final answer
    x = 104,600.74

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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.