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Finding the Fourth Proportional to 199,057.50, 298,586.25 and 51,313.50

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Solution

The fourth proportional to 199,057.50, 298,586.25 and 51,313.50 is: 76,970.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    199,057.50 : 298,586.25 = 51,313.50 : x
  2. Step 2: Convert to fraction form
    199,057.50/298,586.25 = 51,313.50/x
  3. Step 3: Cross multiply
    199,057.50x = 298,586.25 × 51,313.50
  4. Step 4: Simplify right side
    199,057.50x = 15,321,505,539.38
  5. Step 5: Solve for x
    x = 15,321,505,539.38/199,057.50
  6. Step 6: Final answer
    x = 76,970.25

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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.