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Finding the Fourth Proportional to 139,584.11, 192,522.93 and 88,552.90

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Solution

The fourth proportional to 139,584.11, 192,522.93 and 88,552.90 is: 122,137.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,584.11 : 192,522.93 = 88,552.90 : x
  2. Step 2: Convert to fraction form
    139,584.11/192,522.93 = 88,552.90/x
  3. Step 3: Cross multiply
    139,584.11x = 192,522.93 × 88,552.90
  4. Step 4: Simplify right side
    139,584.11x = 17,048,462,593.64
  5. Step 5: Solve for x
    x = 17,048,462,593.64/139,584.11
  6. Step 6: Final answer
    x = 122,137.56

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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.