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Finding the Fourth Proportional to 210,644.41, 290,618.31 and 119,936.22

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Solution

The fourth proportional to 210,644.41, 290,618.31 and 119,936.22 is: 165,471.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,644.41 : 290,618.31 = 119,936.22 : x
  2. Step 2: Convert to fraction form
    210,644.41/290,618.31 = 119,936.22/x
  3. Step 3: Cross multiply
    210,644.41x = 290,618.31 × 119,936.22
  4. Step 4: Simplify right side
    210,644.41x = 34,855,661,564.19
  5. Step 5: Solve for x
    x = 34,855,661,564.19/210,644.41
  6. Step 6: Final answer
    x = 165,471.57

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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.