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Finding the Fourth Proportional to 286,356.60, 394,995.42 and 184,348.44

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Solution

The fourth proportional to 286,356.60, 394,995.42 and 184,348.44 is: 254,287.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    286,356.60 : 394,995.42 = 184,348.44 : x
  2. Step 2: Convert to fraction form
    286,356.60/394,995.42 = 184,348.44/x
  3. Step 3: Cross multiply
    286,356.60x = 394,995.42 × 184,348.44
  4. Step 4: Simplify right side
    286,356.60x = 72,816,789,484.14
  5. Step 5: Solve for x
    x = 72,816,789,484.14/286,356.60
  6. Step 6: Final answer
    x = 254,287.10

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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.