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Finding the Fourth Proportional to 76,696.65, 114,891.80 and 60,928.29

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Solution

The fourth proportional to 76,696.65, 114,891.80 and 60,928.29 is: 91,270.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,696.65 : 114,891.80 = 60,928.29 : x
  2. Step 2: Convert to fraction form
    76,696.65/114,891.80 = 60,928.29/x
  3. Step 3: Cross multiply
    76,696.65x = 114,891.80 × 60,928.29
  4. Step 4: Simplify right side
    76,696.65x = 7,000,160,604.38
  5. Step 5: Solve for x
    x = 7,000,160,604.38/76,696.65
  6. Step 6: Final answer
    x = 91,270.75

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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.