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Finding the Fourth Proportional to 113,636.53, 170,479.41 and 43,515.84

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Solution

The fourth proportional to 113,636.53, 170,479.41 and 43,515.84 is: 65,283.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,636.53 : 170,479.41 = 43,515.84 : x
  2. Step 2: Convert to fraction form
    113,636.53/170,479.41 = 43,515.84/x
  3. Step 3: Cross multiply
    113,636.53x = 170,479.41 × 43,515.84
  4. Step 4: Simplify right side
    113,636.53x = 7,418,555,204.97
  5. Step 5: Solve for x
    x = 7,418,555,204.97/113,636.53
  6. Step 6: Final answer
    x = 65,283.19

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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.