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Finding the Fourth Proportional to 188,403.74, 259,932.88 and 116,757.62

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Solution

The fourth proportional to 188,403.74, 259,932.88 and 116,757.62 is: 161,085.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,403.74 : 259,932.88 = 116,757.62 : x
  2. Step 2: Convert to fraction form
    188,403.74/259,932.88 = 116,757.62/x
  3. Step 3: Cross multiply
    188,403.74x = 259,932.88 × 116,757.62
  4. Step 4: Simplify right side
    188,403.74x = 30,349,144,428.55
  5. Step 5: Solve for x
    x = 30,349,144,428.55/188,403.74
  6. Step 6: Final answer
    x = 161,085.68

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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.