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Finding the Fourth Proportional to 181,886.44, 250,990.38 and 100,211.08

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Solution

The fourth proportional to 181,886.44, 250,990.38 and 100,211.08 is: 138,284.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    181,886.44 : 250,990.38 = 100,211.08 : x
  2. Step 2: Convert to fraction form
    181,886.44/250,990.38 = 100,211.08/x
  3. Step 3: Cross multiply
    181,886.44x = 250,990.38 × 100,211.08
  4. Step 4: Simplify right side
    181,886.44x = 25,152,017,049.41
  5. Step 5: Solve for x
    x = 25,152,017,049.41/181,886.44
  6. Step 6: Final answer
    x = 138,284.18

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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.