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Finding the Fourth Proportional to 76,693.70, 115,059.63 and 60,958.10

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Solution

The fourth proportional to 76,693.70, 115,059.63 and 60,958.10 is: 91,452.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,693.70 : 115,059.63 = 60,958.10 : x
  2. Step 2: Convert to fraction form
    76,693.70/115,059.63 = 60,958.10/x
  3. Step 3: Cross multiply
    76,693.70x = 115,059.63 × 60,958.10
  4. Step 4: Simplify right side
    76,693.70x = 7,013,816,431.50
  5. Step 5: Solve for x
    x = 7,013,816,431.50/76,693.70
  6. Step 6: Final answer
    x = 91,452.32

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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.