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Finding the Fourth Proportional to 76,707.99, 115,059.24 and 26,787.89

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Solution

The fourth proportional to 76,707.99, 115,059.24 and 26,787.89 is: 40,180.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,707.99 : 115,059.24 = 26,787.89 : x
  2. Step 2: Convert to fraction form
    76,707.99/115,059.24 = 26,787.89/x
  3. Step 3: Cross multiply
    76,707.99x = 115,059.24 × 26,787.89
  4. Step 4: Simplify right side
    76,707.99x = 3,082,194,264.60
  5. Step 5: Solve for x
    x = 3,082,194,264.60/76,707.99
  6. Step 6: Final answer
    x = 40,180.88

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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.