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Finding the Fourth Proportional to 120,335.58, 166,091.01 and 80,051.04

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Solution

The fourth proportional to 120,335.58, 166,091.01 and 80,051.04 is: 110,489.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,335.58 : 166,091.01 = 80,051.04 : x
  2. Step 2: Convert to fraction form
    120,335.58/166,091.01 = 80,051.04/x
  3. Step 3: Cross multiply
    120,335.58x = 166,091.01 × 80,051.04
  4. Step 4: Simplify right side
    120,335.58x = 13,295,758,085.15
  5. Step 5: Solve for x
    x = 13,295,758,085.15/120,335.58
  6. Step 6: Final answer
    x = 110,489.00

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.