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Finding the Fourth Proportional to 65,389.20, 98,083.80 and 61,452.60

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Solution

The fourth proportional to 65,389.20, 98,083.80 and 61,452.60 is: 92,178.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,389.20 : 98,083.80 = 61,452.60 : x
  2. Step 2: Convert to fraction form
    65,389.20/98,083.80 = 61,452.60/x
  3. Step 3: Cross multiply
    65,389.20x = 98,083.80 × 61,452.60
  4. Step 4: Simplify right side
    65,389.20x = 6,027,504,527.88
  5. Step 5: Solve for x
    x = 6,027,504,527.88/65,389.20
  6. Step 6: Final answer
    x = 92,178.90

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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.