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Finding the Fourth Proportional to 188,955, 260,757.90 and 104,072.06

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Solution

The fourth proportional to 188,955, 260,757.90 and 104,072.06 is: 143,619.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,955 : 260,757.90 = 104,072.06 : x
  2. Step 2: Convert to fraction form
    188,955/260,757.90 = 104,072.06/x
  3. Step 3: Cross multiply
    188,955x = 260,757.90 × 104,072.06
  4. Step 4: Simplify right side
    188,955x = 27,137,612,466.17
  5. Step 5: Solve for x
    x = 27,137,612,466.17/188,955
  6. Step 6: Final answer
    x = 143,619.45

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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.