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Finding the Fourth Proportional to 89,114.80, 133,672.20 and 65,844.40

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Solution

The fourth proportional to 89,114.80, 133,672.20 and 65,844.40 is: 98,766.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,114.80 : 133,672.20 = 65,844.40 : x
  2. Step 2: Convert to fraction form
    89,114.80/133,672.20 = 65,844.40/x
  3. Step 3: Cross multiply
    89,114.80x = 133,672.20 × 65,844.40
  4. Step 4: Simplify right side
    89,114.80x = 8,801,565,805.68
  5. Step 5: Solve for x
    x = 8,801,565,805.68/89,114.80
  6. Step 6: Final answer
    x = 98,766.60

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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.