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Finding the Fourth Proportional to 185,858.92, 256,563.78 and 125,511.40

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Solution

The fourth proportional to 185,858.92, 256,563.78 and 125,511.40 is: 173,258.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,858.92 : 256,563.78 = 125,511.40 : x
  2. Step 2: Convert to fraction form
    185,858.92/256,563.78 = 125,511.40/x
  3. Step 3: Cross multiply
    185,858.92x = 256,563.78 × 125,511.40
  4. Step 4: Simplify right side
    185,858.92x = 32,201,679,217.09
  5. Step 5: Solve for x
    x = 32,201,679,217.09/185,858.92
  6. Step 6: Final answer
    x = 173,258.72

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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.