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Finding the Fourth Proportional to 245,731.20, 368,596.80 and 166,999.20

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Solution

The fourth proportional to 245,731.20, 368,596.80 and 166,999.20 is: 250,498.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    245,731.20 : 368,596.80 = 166,999.20 : x
  2. Step 2: Convert to fraction form
    245,731.20/368,596.80 = 166,999.20/x
  3. Step 3: Cross multiply
    245,731.20x = 368,596.80 × 166,999.20
  4. Step 4: Simplify right side
    245,731.20x = 61,555,370,722.56
  5. Step 5: Solve for x
    x = 61,555,370,722.56/245,731.20
  6. Step 6: Final answer
    x = 250,498.80

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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.