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Finding the Fourth Proportional to 185,679.68, 256,044 and 110,213.60

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Solution

The fourth proportional to 185,679.68, 256,044 and 110,213.60 is: 151,979.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,679.68 : 256,044 = 110,213.60 : x
  2. Step 2: Convert to fraction form
    185,679.68/256,044 = 110,213.60/x
  3. Step 3: Cross multiply
    185,679.68x = 256,044 × 110,213.60
  4. Step 4: Simplify right side
    185,679.68x = 28,219,530,998.40
  5. Step 5: Solve for x
    x = 28,219,530,998.40/185,679.68
  6. Step 6: Final answer
    x = 151,979.64

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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.