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Finding the Fourth Proportional to 76,415.62, 114,474.31 and 50,040.40

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Solution

The fourth proportional to 76,415.62, 114,474.31 and 50,040.40 is: 74,962.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,415.62 : 114,474.31 = 50,040.40 : x
  2. Step 2: Convert to fraction form
    76,415.62/114,474.31 = 50,040.40/x
  3. Step 3: Cross multiply
    76,415.62x = 114,474.31 × 50,040.40
  4. Step 4: Simplify right side
    76,415.62x = 5,728,339,975.94
  5. Step 5: Solve for x
    x = 5,728,339,975.94/76,415.62
  6. Step 6: Final answer
    x = 74,962.95

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1.5x scale

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.