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Finding the Fourth Proportional to 258,392.03, 356,541.94 and 147,993.47

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Solution

The fourth proportional to 258,392.03, 356,541.94 and 147,993.47 is: 204,208.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    258,392.03 : 356,541.94 = 147,993.47 : x
  2. Step 2: Convert to fraction form
    258,392.03/356,541.94 = 147,993.47/x
  3. Step 3: Cross multiply
    258,392.03x = 356,541.94 × 147,993.47
  4. Step 4: Simplify right side
    258,392.03x = 52,765,878,901.13
  5. Step 5: Solve for x
    x = 52,765,878,901.13/258,392.03
  6. Step 6: Final answer
    x = 204,208.62

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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.