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Finding the Fourth Proportional to 110,812.80, 166,276.80 and 48,489.60

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Solution

The fourth proportional to 110,812.80, 166,276.80 and 48,489.60 is: 72,759.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    110,812.80 : 166,276.80 = 48,489.60 : x
  2. Step 2: Convert to fraction form
    110,812.80/166,276.80 = 48,489.60/x
  3. Step 3: Cross multiply
    110,812.80x = 166,276.80 × 48,489.60
  4. Step 4: Simplify right side
    110,812.80x = 8,062,695,521.28
  5. Step 5: Solve for x
    x = 8,062,695,521.28/110,812.80
  6. Step 6: Final answer
    x = 72,759.60

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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.