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Finding the Fourth Proportional to 79,492.37, 109,699.38 and 43,684.65

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Solution

The fourth proportional to 79,492.37, 109,699.38 and 43,684.65 is: 60,284.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,492.37 : 109,699.38 = 43,684.65 : x
  2. Step 2: Convert to fraction form
    79,492.37/109,699.38 = 43,684.65/x
  3. Step 3: Cross multiply
    79,492.37x = 109,699.38 × 43,684.65
  4. Step 4: Simplify right side
    79,492.37x = 4,792,179,020.52
  5. Step 5: Solve for x
    x = 4,792,179,020.52/79,492.37
  6. Step 6: Final answer
    x = 60,284.77

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.