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Finding the Fourth Proportional to 81,466.80, 122,200.20 and 59,175.60

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Solution

The fourth proportional to 81,466.80, 122,200.20 and 59,175.60 is: 88,763.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,466.80 : 122,200.20 = 59,175.60 : x
  2. Step 2: Convert to fraction form
    81,466.80/122,200.20 = 59,175.60/x
  3. Step 3: Cross multiply
    81,466.80x = 122,200.20 × 59,175.60
  4. Step 4: Simplify right side
    81,466.80x = 7,231,270,155.12
  5. Step 5: Solve for x
    x = 7,231,270,155.12/81,466.80
  6. Step 6: Final answer
    x = 88,763.40

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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.