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Finding the Fourth Proportional to 248,533.73, 342,976.50 and 135,356.48

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Solution

The fourth proportional to 248,533.73, 342,976.50 and 135,356.48 is: 186,791.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    248,533.73 : 342,976.50 = 135,356.48 : x
  2. Step 2: Convert to fraction form
    248,533.73/342,976.50 = 135,356.48/x
  3. Step 3: Cross multiply
    248,533.73x = 342,976.50 × 135,356.48
  4. Step 4: Simplify right side
    248,533.73x = 46,424,090,047.84
  5. Step 5: Solve for x
    x = 46,424,090,047.84/248,533.73
  6. Step 6: Final answer
    x = 186,791.91

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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.