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Finding the Fourth Proportional to 187,617.94, 258,952.95 and 119,619.25

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Solution

The fourth proportional to 187,617.94, 258,952.95 and 119,619.25 is: 165,100.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,617.94 : 258,952.95 = 119,619.25 : x
  2. Step 2: Convert to fraction form
    187,617.94/258,952.95 = 119,619.25/x
  3. Step 3: Cross multiply
    187,617.94x = 258,952.95 × 119,619.25
  4. Step 4: Simplify right side
    187,617.94x = 30,975,757,016.91
  5. Step 5: Solve for x
    x = 30,975,757,016.91/187,617.94
  6. Step 6: Final answer
    x = 165,100.19

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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.