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Finding the Fourth Proportional to 187,618.94, 258,954.33 and 119,620.25

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Solution

The fourth proportional to 187,618.94, 258,954.33 and 119,620.25 is: 165,101.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,618.94 : 258,954.33 = 119,620.25 : x
  2. Step 2: Convert to fraction form
    187,618.94/258,954.33 = 119,620.25/x
  3. Step 3: Cross multiply
    187,618.94x = 258,954.33 × 119,620.25
  4. Step 4: Simplify right side
    187,618.94x = 30,976,181,693.18
  5. Step 5: Solve for x
    x = 30,976,181,693.18/187,618.94
  6. Step 6: Final answer
    x = 165,101.57

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1.5x scale

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.