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Finding the Fourth Proportional to 165,086.40, 247,629.60 and 106,037.40

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Solution

The fourth proportional to 165,086.40, 247,629.60 and 106,037.40 is: 159,056.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    165,086.40 : 247,629.60 = 106,037.40 : x
  2. Step 2: Convert to fraction form
    165,086.40/247,629.60 = 106,037.40/x
  3. Step 3: Cross multiply
    165,086.40x = 247,629.60 × 106,037.40
  4. Step 4: Simplify right side
    165,086.40x = 26,257,998,947.04
  5. Step 5: Solve for x
    x = 26,257,998,947.04/165,086.40
  6. Step 6: Final answer
    x = 159,056.10

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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.