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Finding the Fourth Proportional to 199,289.55, 298,728.31 and 92,586.45

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Solution

The fourth proportional to 199,289.55, 298,728.31 and 92,586.45 is: 138,783.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    199,289.55 : 298,728.31 = 92,586.45 : x
  2. Step 2: Convert to fraction form
    199,289.55/298,728.31 = 92,586.45/x
  3. Step 3: Cross multiply
    199,289.55x = 298,728.31 × 92,586.45
  4. Step 4: Simplify right side
    199,289.55x = 27,658,193,737.40
  5. Step 5: Solve for x
    x = 27,658,193,737.40/199,289.55
  6. Step 6: Final answer
    x = 138,783.96

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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.