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Finding the Fourth Proportional to 73,273.83, 109,836.90 and 28,883.40

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Solution

The fourth proportional to 73,273.83, 109,836.90 and 28,883.40 is: 43,295.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,273.83 : 109,836.90 = 28,883.40 : x
  2. Step 2: Convert to fraction form
    73,273.83/109,836.90 = 28,883.40/x
  3. Step 3: Cross multiply
    73,273.83x = 109,836.90 × 28,883.40
  4. Step 4: Simplify right side
    73,273.83x = 3,172,463,117.46
  5. Step 5: Solve for x
    x = 3,172,463,117.46/73,273.83
  6. Step 6: Final answer
    x = 43,295.99

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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.