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Finding the Fourth Proportional to 140,889.96, 194,614.48 and 105,017.70

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Solution

The fourth proportional to 140,889.96, 194,614.48 and 105,017.70 is: 145,063.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,889.96 : 194,614.48 = 105,017.70 : x
  2. Step 2: Convert to fraction form
    140,889.96/194,614.48 = 105,017.70/x
  3. Step 3: Cross multiply
    140,889.96x = 194,614.48 × 105,017.70
  4. Step 4: Simplify right side
    140,889.96x = 20,437,965,076.30
  5. Step 5: Solve for x
    x = 20,437,965,076.30/140,889.96
  6. Step 6: Final answer
    x = 145,063.32

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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.