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Finding the Fourth Proportional to 111,295.70, 166,943.55 and 69,823.70

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Solution

The fourth proportional to 111,295.70, 166,943.55 and 69,823.70 is: 104,735.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,295.70 : 166,943.55 = 69,823.70 : x
  2. Step 2: Convert to fraction form
    111,295.70/166,943.55 = 69,823.70/x
  3. Step 3: Cross multiply
    111,295.70x = 166,943.55 × 69,823.70
  4. Step 4: Simplify right side
    111,295.70x = 11,656,616,352.14
  5. Step 5: Solve for x
    x = 11,656,616,352.14/111,295.70
  6. Step 6: Final answer
    x = 104,735.55

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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.