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Finding the Fourth Proportional to 193,990.96, 290,986.80 and 53,749.96

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Solution

The fourth proportional to 193,990.96, 290,986.80 and 53,749.96 is: 80,625.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    193,990.96 : 290,986.80 = 53,749.96 : x
  2. Step 2: Convert to fraction form
    193,990.96/290,986.80 = 53,749.96/x
  3. Step 3: Cross multiply
    193,990.96x = 290,986.80 × 53,749.96
  4. Step 4: Simplify right side
    193,990.96x = 15,640,528,860.53
  5. Step 5: Solve for x
    x = 15,640,528,860.53/193,990.96
  6. Step 6: Final answer
    x = 80,625.04

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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.