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Finding the Fourth Proportional to 73,266.70, 109,900.05 and 43,742.20

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Solution

The fourth proportional to 73,266.70, 109,900.05 and 43,742.20 is: 65,613.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,266.70 : 109,900.05 = 43,742.20 : x
  2. Step 2: Convert to fraction form
    73,266.70/109,900.05 = 43,742.20/x
  3. Step 3: Cross multiply
    73,266.70x = 109,900.05 × 43,742.20
  4. Step 4: Simplify right side
    73,266.70x = 4,807,269,967.11
  5. Step 5: Solve for x
    x = 4,807,269,967.11/73,266.70
  6. Step 6: Final answer
    x = 65,613.30

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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.