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Finding the Fourth Proportional to 185,676.87, 256,234.85 and 105,119.94

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Solution

The fourth proportional to 185,676.87, 256,234.85 and 105,119.94 is: 145,065.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,676.87 : 256,234.85 = 105,119.94 : x
  2. Step 2: Convert to fraction form
    185,676.87/256,234.85 = 105,119.94/x
  3. Step 3: Cross multiply
    185,676.87x = 256,234.85 × 105,119.94
  4. Step 4: Simplify right side
    185,676.87x = 26,935,391,532.31
  5. Step 5: Solve for x
    x = 26,935,391,532.31/185,676.87
  6. Step 6: Final answer
    x = 145,065.95

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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.