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Finding the Fourth Proportional to 110,393.76, 165,610.80 and 51,221.28

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Solution

The fourth proportional to 110,393.76, 165,610.80 and 51,221.28 is: 76,841.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    110,393.76 : 165,610.80 = 51,221.28 : x
  2. Step 2: Convert to fraction form
    110,393.76/165,610.80 = 51,221.28/x
  3. Step 3: Cross multiply
    110,393.76x = 165,610.80 × 51,221.28
  4. Step 4: Simplify right side
    110,393.76x = 8,482,797,157.82
  5. Step 5: Solve for x
    x = 8,482,797,157.82/110,393.76
  6. Step 6: Final answer
    x = 76,841.27

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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.