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Finding the Fourth Proportional to 99,568.40, 149,352.60 and 44,164.40

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Solution

The fourth proportional to 99,568.40, 149,352.60 and 44,164.40 is: 66,246.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,568.40 : 149,352.60 = 44,164.40 : x
  2. Step 2: Convert to fraction form
    99,568.40/149,352.60 = 44,164.40/x
  3. Step 3: Cross multiply
    99,568.40x = 149,352.60 × 44,164.40
  4. Step 4: Simplify right side
    99,568.40x = 6,596,067,967.44
  5. Step 5: Solve for x
    x = 6,596,067,967.44/99,568.40
  6. Step 6: Final answer
    x = 66,246.60

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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.