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Finding the Fourth Proportional to 73,190.36, 109,811.88 and 28,792.52

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Solution

The fourth proportional to 73,190.36, 109,811.88 and 28,792.52 is: 43,199.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,190.36 : 109,811.88 = 28,792.52 : x
  2. Step 2: Convert to fraction form
    73,190.36/109,811.88 = 28,792.52/x
  3. Step 3: Cross multiply
    73,190.36x = 109,811.88 × 28,792.52
  4. Step 4: Simplify right side
    73,190.36x = 3,161,760,751.14
  5. Step 5: Solve for x
    x = 3,161,760,751.14/73,190.36
  6. Step 6: Final answer
    x = 43,199.14

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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.