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Finding the Fourth Proportional to 79,354.78, 109,512.74 and 43,546.07

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Solution

The fourth proportional to 79,354.78, 109,512.74 and 43,546.07 is: 60,095.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,354.78 : 109,512.74 = 43,546.07 : x
  2. Step 2: Convert to fraction form
    79,354.78/109,512.74 = 43,546.07/x
  3. Step 3: Cross multiply
    79,354.78x = 109,512.74 × 43,546.07
  4. Step 4: Simplify right side
    79,354.78x = 4,768,849,824.58
  5. Step 5: Solve for x
    x = 4,768,849,824.58/79,354.78
  6. Step 6: Final answer
    x = 60,095.31

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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.