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Finding the Fourth Proportional to 76,490.44, 114,653.63 and 36,960.41

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Solution

The fourth proportional to 76,490.44, 114,653.63 and 36,960.41 is: 55,400.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,490.44 : 114,653.63 = 36,960.41 : x
  2. Step 2: Convert to fraction form
    76,490.44/114,653.63 = 36,960.41/x
  3. Step 3: Cross multiply
    76,490.44x = 114,653.63 × 36,960.41
  4. Step 4: Simplify right side
    76,490.44x = 4,237,645,551.82
  5. Step 5: Solve for x
    x = 4,237,645,551.82/76,490.44
  6. Step 6: Final answer
    x = 55,400.98

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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.