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Finding the Fourth Proportional to 188,809.58, 260,563.60 and 102,771.69

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Solution

The fourth proportional to 188,809.58, 260,563.60 and 102,771.69 is: 141,828.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,809.58 : 260,563.60 = 102,771.69 : x
  2. Step 2: Convert to fraction form
    188,809.58/260,563.60 = 102,771.69/x
  3. Step 3: Cross multiply
    188,809.58x = 260,563.60 × 102,771.69
  4. Step 4: Simplify right side
    188,809.58x = 26,778,561,918.96
  5. Step 5: Solve for x
    x = 26,778,561,918.96/188,809.58
  6. Step 6: Final answer
    x = 141,828.41

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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.