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Finding the Fourth Proportional to 73,272.83, 109,835.40 and 28,882.40

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Solution

The fourth proportional to 73,272.83, 109,835.40 and 28,882.40 is: 43,294.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,272.83 : 109,835.40 = 28,882.40 : x
  2. Step 2: Convert to fraction form
    73,272.83/109,835.40 = 28,882.40/x
  3. Step 3: Cross multiply
    73,272.83x = 109,835.40 × 28,882.40
  4. Step 4: Simplify right side
    73,272.83x = 3,172,309,956.96
  5. Step 5: Solve for x
    x = 3,172,309,956.96/73,272.83
  6. Step 6: Final answer
    x = 43,294.49

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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.