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Finding the Fourth Proportional to 119,995.80, 179,993.70 and 118,246.20

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Solution

The fourth proportional to 119,995.80, 179,993.70 and 118,246.20 is: 177,369.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,995.80 : 179,993.70 = 118,246.20 : x
  2. Step 2: Convert to fraction form
    119,995.80/179,993.70 = 118,246.20/x
  3. Step 3: Cross multiply
    119,995.80x = 179,993.70 × 118,246.20
  4. Step 4: Simplify right side
    119,995.80x = 21,283,571,048.94
  5. Step 5: Solve for x
    x = 21,283,571,048.94/119,995.80
  6. Step 6: Final answer
    x = 177,369.30

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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.