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Finding the Fourth Proportional to 165,622.80, 248,447.70 and 70,853.70

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Solution

The fourth proportional to 165,622.80, 248,447.70 and 70,853.70 is: 106,286.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    165,622.80 : 248,447.70 = 70,853.70 : x
  2. Step 2: Convert to fraction form
    165,622.80/248,447.70 = 70,853.70/x
  3. Step 3: Cross multiply
    165,622.80x = 248,447.70 × 70,853.70
  4. Step 4: Simplify right side
    165,622.80x = 17,603,438,801.49
  5. Step 5: Solve for x
    x = 17,603,438,801.49/165,622.80
  6. Step 6: Final answer
    x = 106,286.33

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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.