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Finding the Fourth Proportional to 111,081.60, 166,646.70 and 36,205.20

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Solution

The fourth proportional to 111,081.60, 166,646.70 and 36,205.20 is: 54,315.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,081.60 : 166,646.70 = 36,205.20 : x
  2. Step 2: Convert to fraction form
    111,081.60/166,646.70 = 36,205.20/x
  3. Step 3: Cross multiply
    111,081.60x = 166,646.70 × 36,205.20
  4. Step 4: Simplify right side
    111,081.60x = 6,033,477,102.84
  5. Step 5: Solve for x
    x = 6,033,477,102.84/111,081.60
  6. Step 6: Final answer
    x = 54,315.72

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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.