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Finding the Fourth Proportional to 111,215.70, 166,823.55 and 104,654.70

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Solution

The fourth proportional to 111,215.70, 166,823.55 and 104,654.70 is: 156,982.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,215.70 : 166,823.55 = 104,654.70 : x
  2. Step 2: Convert to fraction form
    111,215.70/166,823.55 = 104,654.70/x
  3. Step 3: Cross multiply
    111,215.70x = 166,823.55 × 104,654.70
  4. Step 4: Simplify right side
    111,215.70x = 17,458,868,578.19
  5. Step 5: Solve for x
    x = 17,458,868,578.19/111,215.70
  6. Step 6: Final answer
    x = 156,982.05

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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.