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Finding the Fourth Proportional to 110,801.90, 166,105.65 and 66,446.30

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Solution

The fourth proportional to 110,801.90, 166,105.65 and 66,446.30 is: 99,611.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    110,801.90 : 166,105.65 = 66,446.30 : x
  2. Step 2: Convert to fraction form
    110,801.90/166,105.65 = 66,446.30/x
  3. Step 3: Cross multiply
    110,801.90x = 166,105.65 × 66,446.30
  4. Step 4: Simplify right side
    110,801.90x = 11,037,105,851.60
  5. Step 5: Solve for x
    x = 11,037,105,851.60/110,801.90
  6. Step 6: Final answer
    x = 99,611.16

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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.