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Finding the Fourth Proportional to 185,768.64, 256,359.60 and 100,884.96

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Solution

The fourth proportional to 185,768.64, 256,359.60 and 100,884.96 is: 139,220.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,768.64 : 256,359.60 = 100,884.96 : x
  2. Step 2: Convert to fraction form
    185,768.64/256,359.60 = 100,884.96/x
  3. Step 3: Cross multiply
    185,768.64x = 256,359.60 × 100,884.96
  4. Step 4: Simplify right side
    185,768.64x = 25,862,827,991.62
  5. Step 5: Solve for x
    x = 25,862,827,991.62/185,768.64
  6. Step 6: Final answer
    x = 139,220.63

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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.