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Finding the Fourth Proportional to 77,763.53, 116,663.79 and 25,173

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Solution

The fourth proportional to 77,763.53, 116,663.79 and 25,173 is: 37,765.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,763.53 : 116,663.79 = 25,173 : x
  2. Step 2: Convert to fraction form
    77,763.53/116,663.79 = 25,173/x
  3. Step 3: Cross multiply
    77,763.53x = 116,663.79 × 25,173
  4. Step 4: Simplify right side
    77,763.53x = 2,936,777,585.67
  5. Step 5: Solve for x
    x = 2,936,777,585.67/77,763.53
  6. Step 6: Final answer
    x = 37,765.49

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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.