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Finding the Fourth Proportional to 110,555.90, 165,736.65 and 66,200.30

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Solution

The fourth proportional to 110,555.90, 165,736.65 and 66,200.30 is: 99,242.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    110,555.90 : 165,736.65 = 66,200.30 : x
  2. Step 2: Convert to fraction form
    110,555.90/165,736.65 = 66,200.30/x
  3. Step 3: Cross multiply
    110,555.90x = 165,736.65 × 66,200.30
  4. Step 4: Simplify right side
    110,555.90x = 10,971,815,951.00
  5. Step 5: Solve for x
    x = 10,971,815,951.00/110,555.90
  6. Step 6: Final answer
    x = 99,242.25

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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.