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Finding the Fourth Proportional to 120,004.20, 179,660.70 and 116,548.20

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Solution

The fourth proportional to 120,004.20, 179,660.70 and 116,548.20 is: 174,486.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,004.20 : 179,660.70 = 116,548.20 : x
  2. Step 2: Convert to fraction form
    120,004.20/179,660.70 = 116,548.20/x
  3. Step 3: Cross multiply
    120,004.20x = 179,660.70 × 116,548.20
  4. Step 4: Simplify right side
    120,004.20x = 20,939,131,195.74
  5. Step 5: Solve for x
    x = 20,939,131,195.74/120,004.20
  6. Step 6: Final answer
    x = 174,486.65

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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.