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Finding the Fourth Proportional to 187,662.33, 258,978.33 and 107,097.35

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Solution

The fourth proportional to 187,662.33, 258,978.33 and 107,097.35 is: 147,796.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,662.33 : 258,978.33 = 107,097.35 : x
  2. Step 2: Convert to fraction form
    187,662.33/258,978.33 = 107,097.35/x
  3. Step 3: Cross multiply
    187,662.33x = 258,978.33 × 107,097.35
  4. Step 4: Simplify right side
    187,662.33x = 27,735,891,555.53
  5. Step 5: Solve for x
    x = 27,735,891,555.53/187,662.33
  6. Step 6: Final answer
    x = 147,796.80

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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.