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Finding the Fourth Proportional to 78,452.40, 108,260.72 and 44,458.88

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Solution

The fourth proportional to 78,452.40, 108,260.72 and 44,458.88 is: 61,351.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,452.40 : 108,260.72 = 44,458.88 : x
  2. Step 2: Convert to fraction form
    78,452.40/108,260.72 = 44,458.88/x
  3. Step 3: Cross multiply
    78,452.40x = 108,260.72 × 44,458.88
  4. Step 4: Simplify right side
    78,452.40x = 4,813,150,359.19
  5. Step 5: Solve for x
    x = 4,813,150,359.19/78,452.40
  6. Step 6: Final answer
    x = 61,351.22

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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.