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Finding the Fourth Proportional to 185,644.92, 256,170.42 and 105,059.64

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Solution

The fourth proportional to 185,644.92, 256,170.42 and 105,059.64 is: 144,971.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,644.92 : 256,170.42 = 105,059.64 : x
  2. Step 2: Convert to fraction form
    185,644.92/256,170.42 = 105,059.64/x
  3. Step 3: Cross multiply
    185,644.92x = 256,170.42 × 105,059.64
  4. Step 4: Simplify right side
    185,644.92x = 26,913,172,103.85
  5. Step 5: Solve for x
    x = 26,913,172,103.85/185,644.92
  6. Step 6: Final answer
    x = 144,971.23

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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.