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Finding the Fourth Proportional to 111,195.51, 166,830.30 and 73,902.30

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Solution

The fourth proportional to 111,195.51, 166,830.30 and 73,902.30 is: 110,878.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,195.51 : 166,830.30 = 73,902.30 : x
  2. Step 2: Convert to fraction form
    111,195.51/166,830.30 = 73,902.30/x
  3. Step 3: Cross multiply
    111,195.51x = 166,830.30 × 73,902.30
  4. Step 4: Simplify right side
    111,195.51x = 12,329,142,879.69
  5. Step 5: Solve for x
    x = 12,329,142,879.69/111,195.51
  6. Step 6: Final answer
    x = 110,878.06

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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.