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Finding the Fourth Proportional to 185,857.94, 256,496.64 and 105,286.12

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Solution

The fourth proportional to 185,857.94, 256,496.64 and 105,286.12 is: 145,302.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,857.94 : 256,496.64 = 105,286.12 : x
  2. Step 2: Convert to fraction form
    185,857.94/256,496.64 = 105,286.12/x
  3. Step 3: Cross multiply
    185,857.94x = 256,496.64 × 105,286.12
  4. Step 4: Simplify right side
    185,857.94x = 27,005,536,425.37
  5. Step 5: Solve for x
    x = 27,005,536,425.37/185,857.94
  6. Step 6: Final answer
    x = 145,302.03

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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.