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Finding the Fourth Proportional to 165,536.50, 248,343.63 and 54,728.50

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Solution

The fourth proportional to 165,536.50, 248,343.63 and 54,728.50 is: 82,105.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    165,536.50 : 248,343.63 = 54,728.50 : x
  2. Step 2: Convert to fraction form
    165,536.50/248,343.63 = 54,728.50/x
  3. Step 3: Cross multiply
    165,536.50x = 248,343.63 × 54,728.50
  4. Step 4: Simplify right side
    165,536.50x = 13,591,474,354.46
  5. Step 5: Solve for x
    x = 13,591,474,354.46/165,536.50
  6. Step 6: Final answer
    x = 82,105.60

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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.