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Finding the Fourth Proportional to 185,843.60, 256,435.44 and 109,401.20

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Solution

The fourth proportional to 185,843.60, 256,435.44 and 109,401.20 is: 150,956.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,843.60 : 256,435.44 = 109,401.20 : x
  2. Step 2: Convert to fraction form
    185,843.60/256,435.44 = 109,401.20/x
  3. Step 3: Cross multiply
    185,843.60x = 256,435.44 × 109,401.20
  4. Step 4: Simplify right side
    185,843.60x = 28,054,344,858.53
  5. Step 5: Solve for x
    x = 28,054,344,858.53/185,843.60
  6. Step 6: Final answer
    x = 150,956.74

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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.