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Finding the Fourth Proportional to 165,549.20, 248,323.80 and 54,741.20

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Solution

The fourth proportional to 165,549.20, 248,323.80 and 54,741.20 is: 82,111.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    165,549.20 : 248,323.80 = 54,741.20 : x
  2. Step 2: Convert to fraction form
    165,549.20/248,323.80 = 54,741.20/x
  3. Step 3: Cross multiply
    165,549.20x = 248,323.80 × 54,741.20
  4. Step 4: Simplify right side
    165,549.20x = 13,593,542,800.56
  5. Step 5: Solve for x
    x = 13,593,542,800.56/165,549.20
  6. Step 6: Final answer
    x = 82,111.80

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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.