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Finding the Fourth Proportional to 217,967.44, 300,830.72 and 181,611.20

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Solution

The fourth proportional to 217,967.44, 300,830.72 and 181,611.20 is: 250,653.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    217,967.44 : 300,830.72 = 181,611.20 : x
  2. Step 2: Convert to fraction form
    217,967.44/300,830.72 = 181,611.20/x
  3. Step 3: Cross multiply
    217,967.44x = 300,830.72 × 181,611.20
  4. Step 4: Simplify right side
    217,967.44x = 54,634,228,056.06
  5. Step 5: Solve for x
    x = 54,634,228,056.06/217,967.44
  6. Step 6: Final answer
    x = 250,653.16

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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.