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Finding the Fourth Proportional to 188,349.60, 259,744.07 and 123,705.07

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Solution

The fourth proportional to 188,349.60, 259,744.07 and 123,705.07 is: 170,595.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,349.60 : 259,744.07 = 123,705.07 : x
  2. Step 2: Convert to fraction form
    188,349.60/259,744.07 = 123,705.07/x
  3. Step 3: Cross multiply
    188,349.60x = 259,744.07 × 123,705.07
  4. Step 4: Simplify right side
    188,349.60x = 32,131,658,786.56
  5. Step 5: Solve for x
    x = 32,131,658,786.56/188,349.60
  6. Step 6: Final answer
    x = 170,595.84

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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.