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Finding the Fourth Proportional to 73,053.99, 109,584.11 and 28,690.36

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Solution

The fourth proportional to 73,053.99, 109,584.11 and 28,690.36 is: 43,036.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,053.99 : 109,584.11 = 28,690.36 : x
  2. Step 2: Convert to fraction form
    73,053.99/109,584.11 = 28,690.36/x
  3. Step 3: Cross multiply
    73,053.99x = 109,584.11 × 28,690.36
  4. Step 4: Simplify right side
    73,053.99x = 3,144,007,566.18
  5. Step 5: Solve for x
    x = 3,144,007,566.18/73,053.99
  6. Step 6: Final answer
    x = 43,036.77

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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.