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Finding the Fourth Proportional to 165,798.20, 248,697.30 and 54,990.20

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Solution

The fourth proportional to 165,798.20, 248,697.30 and 54,990.20 is: 82,485.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    165,798.20 : 248,697.30 = 54,990.20 : x
  2. Step 2: Convert to fraction form
    165,798.20/248,697.30 = 54,990.20/x
  3. Step 3: Cross multiply
    165,798.20x = 248,697.30 × 54,990.20
  4. Step 4: Simplify right side
    165,798.20x = 13,675,914,266.46
  5. Step 5: Solve for x
    x = 13,675,914,266.46/165,798.20
  6. Step 6: Final answer
    x = 82,485.30

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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.