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Finding the Fourth Proportional to 115,940.35, 162,783.05 and 115,940.35

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Solution

The fourth proportional to 115,940.35, 162,783.05 and 115,940.35 is: 162,783.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,940.35 : 162,783.05 = 115,940.35 : x
  2. Step 2: Convert to fraction form
    115,940.35/162,783.05 = 115,940.35/x
  3. Step 3: Cross multiply
    115,940.35x = 162,783.05 × 115,940.35
  4. Step 4: Simplify right side
    115,940.35x = 18,873,123,791.07
  5. Step 5: Solve for x
    x = 18,873,123,791.07/115,940.35
  6. Step 6: Final answer
    x = 162,783.05

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Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.