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Finding the Fourth Proportional to 188,980.25, 260,792.76 and 104,097.31

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Solution

The fourth proportional to 188,980.25, 260,792.76 and 104,097.31 is: 143,654.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,980.25 : 260,792.76 = 104,097.31 : x
  2. Step 2: Convert to fraction form
    188,980.25/260,792.76 = 104,097.31/x
  3. Step 3: Cross multiply
    188,980.25x = 260,792.76 × 104,097.31
  4. Step 4: Simplify right side
    188,980.25x = 27,147,824,783.48
  5. Step 5: Solve for x
    x = 27,147,824,783.48/188,980.25
  6. Step 6: Final answer
    x = 143,654.30

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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.