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Finding the Fourth Proportional to 79,482.25, 109,685.48 and 43,674.58

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Solution

The fourth proportional to 79,482.25, 109,685.48 and 43,674.58 is: 60,270.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,482.25 : 109,685.48 = 43,674.58 : x
  2. Step 2: Convert to fraction form
    79,482.25/109,685.48 = 43,674.58/x
  3. Step 3: Cross multiply
    79,482.25x = 109,685.48 × 43,674.58
  4. Step 4: Simplify right side
    79,482.25x = 4,790,466,504.30
  5. Step 5: Solve for x
    x = 4,790,466,504.30/79,482.25
  6. Step 6: Final answer
    x = 60,270.90

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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.