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Finding the Fourth Proportional to 195,555.51, 269,868.69 and 120,104.01

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Solution

The fourth proportional to 195,555.51, 269,868.69 and 120,104.01 is: 165,744.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    195,555.51 : 269,868.69 = 120,104.01 : x
  2. Step 2: Convert to fraction form
    195,555.51/269,868.69 = 120,104.01/x
  3. Step 3: Cross multiply
    195,555.51x = 269,868.69 × 120,104.01
  4. Step 4: Simplify right side
    195,555.51x = 32,412,311,017.65
  5. Step 5: Solve for x
    x = 32,412,311,017.65/195,555.51
  6. Step 6: Final answer
    x = 165,744.81

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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.