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Finding the Fourth Proportional to 73,343.48, 109,911.54 and 36,433.40

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Solution

The fourth proportional to 73,343.48, 109,911.54 and 36,433.40 is: 54,598.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,343.48 : 109,911.54 = 36,433.40 : x
  2. Step 2: Convert to fraction form
    73,343.48/109,911.54 = 36,433.40/x
  3. Step 3: Cross multiply
    73,343.48x = 109,911.54 × 36,433.40
  4. Step 4: Simplify right side
    73,343.48x = 4,004,451,101.44
  5. Step 5: Solve for x
    x = 4,004,451,101.44/73,343.48
  6. Step 6: Final answer
    x = 54,598.60

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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.