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Finding the Fourth Proportional to 132,392.56, 198,730.32 and 53,558.32

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Solution

The fourth proportional to 132,392.56, 198,730.32 and 53,558.32 is: 80,394.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,392.56 : 198,730.32 = 53,558.32 : x
  2. Step 2: Convert to fraction form
    132,392.56/198,730.32 = 53,558.32/x
  3. Step 3: Cross multiply
    132,392.56x = 198,730.32 × 53,558.32
  4. Step 4: Simplify right side
    132,392.56x = 10,643,662,072.26
  5. Step 5: Solve for x
    x = 10,643,662,072.26/132,392.56
  6. Step 6: Final answer
    x = 80,394.71

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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.