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Finding the Fourth Proportional to 103,329.97, 154,850.60 and 55,842.69

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Solution

The fourth proportional to 103,329.97, 154,850.60 and 55,842.69 is: 83,686.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,329.97 : 154,850.60 = 55,842.69 : x
  2. Step 2: Convert to fraction form
    103,329.97/154,850.60 = 55,842.69/x
  3. Step 3: Cross multiply
    103,329.97x = 154,850.60 × 55,842.69
  4. Step 4: Simplify right side
    103,329.97x = 8,647,274,052.11
  5. Step 5: Solve for x
    x = 8,647,274,052.11/103,329.97
  6. Step 6: Final answer
    x = 83,686.02

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.