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Finding the Fourth Proportional to 117,645.44, 176,469.96 and 64,940.36

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Solution

The fourth proportional to 117,645.44, 176,469.96 and 64,940.36 is: 97,411.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,645.44 : 176,469.96 = 64,940.36 : x
  2. Step 2: Convert to fraction form
    117,645.44/176,469.96 = 64,940.36/x
  3. Step 3: Cross multiply
    117,645.44x = 176,469.96 × 64,940.36
  4. Step 4: Simplify right side
    117,645.44x = 11,460,022,731.59
  5. Step 5: Solve for x
    x = 11,460,022,731.59/117,645.44
  6. Step 6: Final answer
    x = 97,411.53

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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.