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Finding the Fourth Proportional to 113,885.60, 170,828.40 and 43,766.60

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Solution

The fourth proportional to 113,885.60, 170,828.40 and 43,766.60 is: 65,649.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,885.60 : 170,828.40 = 43,766.60 : x
  2. Step 2: Convert to fraction form
    113,885.60/170,828.40 = 43,766.60/x
  3. Step 3: Cross multiply
    113,885.60x = 170,828.40 × 43,766.60
  4. Step 4: Simplify right side
    113,885.60x = 7,476,578,251.44
  5. Step 5: Solve for x
    x = 7,476,578,251.44/113,885.60
  6. Step 6: Final answer
    x = 65,649.90

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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.