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Finding the Fourth Proportional to 68,072.76, 93,940.50 and 37,858.08

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Solution

The fourth proportional to 68,072.76, 93,940.50 and 37,858.08 is: 52,244.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,072.76 : 93,940.50 = 37,858.08 : x
  2. Step 2: Convert to fraction form
    68,072.76/93,940.50 = 37,858.08/x
  3. Step 3: Cross multiply
    68,072.76x = 93,940.50 × 37,858.08
  4. Step 4: Simplify right side
    68,072.76x = 3,556,406,964.24
  5. Step 5: Solve for x
    x = 3,556,406,964.24/68,072.76
  6. Step 6: Final answer
    x = 52,244.20

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.