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Finding the Fourth Proportional to 110,610.20, 165,915.30 and 75,618.20

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Solution

The fourth proportional to 110,610.20, 165,915.30 and 75,618.20 is: 113,427.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    110,610.20 : 165,915.30 = 75,618.20 : x
  2. Step 2: Convert to fraction form
    110,610.20/165,915.30 = 75,618.20/x
  3. Step 3: Cross multiply
    110,610.20x = 165,915.30 × 75,618.20
  4. Step 4: Simplify right side
    110,610.20x = 12,546,216,338.46
  5. Step 5: Solve for x
    x = 12,546,216,338.46/110,610.20
  6. Step 6: Final answer
    x = 113,427.30

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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.