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Finding the Fourth Proportional to 113,765.80, 170,653.02 and 43,652.20

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Solution

The fourth proportional to 113,765.80, 170,653.02 and 43,652.20 is: 65,479.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,765.80 : 170,653.02 = 43,652.20 : x
  2. Step 2: Convert to fraction form
    113,765.80/170,653.02 = 43,652.20/x
  3. Step 3: Cross multiply
    113,765.80x = 170,653.02 × 43,652.20
  4. Step 4: Simplify right side
    113,765.80x = 7,449,379,759.64
  5. Step 5: Solve for x
    x = 7,449,379,759.64/113,765.80
  6. Step 6: Final answer
    x = 65,479.96

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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.