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Finding the Fourth Proportional to 185,120.37, 277,623.09 and 66,776.31

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Solution

The fourth proportional to 185,120.37, 277,623.09 and 66,776.31 is: 100,143.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,120.37 : 277,623.09 = 66,776.31 : x
  2. Step 2: Convert to fraction form
    185,120.37/277,623.09 = 66,776.31/x
  3. Step 3: Cross multiply
    185,120.37x = 277,623.09 × 66,776.31
  4. Step 4: Simplify right side
    185,120.37x = 18,538,645,521.00
  5. Step 5: Solve for x
    x = 18,538,645,521.00/185,120.37
  6. Step 6: Final answer
    x = 100,143.74

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.