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Finding the Fourth Proportional to 110,109.80, 165,164.70 and 65,713.70

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Solution

The fourth proportional to 110,109.80, 165,164.70 and 65,713.70 is: 98,570.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    110,109.80 : 165,164.70 = 65,713.70 : x
  2. Step 2: Convert to fraction form
    110,109.80/165,164.70 = 65,713.70/x
  3. Step 3: Cross multiply
    110,109.80x = 165,164.70 × 65,713.70
  4. Step 4: Simplify right side
    110,109.80x = 10,853,583,546.39
  5. Step 5: Solve for x
    x = 10,853,583,546.39/110,109.80
  6. Step 6: Final answer
    x = 98,570.55

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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.