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Finding the Fourth Proportional to 73,764.20, 110,646.30 and 73,108.10

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Solution

The fourth proportional to 73,764.20, 110,646.30 and 73,108.10 is: 109,662.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,764.20 : 110,646.30 = 73,108.10 : x
  2. Step 2: Convert to fraction form
    73,764.20/110,646.30 = 73,108.10/x
  3. Step 3: Cross multiply
    73,764.20x = 110,646.30 × 73,108.10
  4. Step 4: Simplify right side
    73,764.20x = 8,089,140,765.03
  5. Step 5: Solve for x
    x = 8,089,140,765.03/73,764.20
  6. Step 6: Final answer
    x = 109,662.15

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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.