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Finding the Fourth Proportional to 119,496.62, 164,908.23 and 65,783.36

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Solution

The fourth proportional to 119,496.62, 164,908.23 and 65,783.36 is: 90,782.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,496.62 : 164,908.23 = 65,783.36 : x
  2. Step 2: Convert to fraction form
    119,496.62/164,908.23 = 65,783.36/x
  3. Step 3: Cross multiply
    119,496.62x = 164,908.23 × 65,783.36
  4. Step 4: Simplify right side
    119,496.62x = 10,848,217,461.05
  5. Step 5: Solve for x
    x = 10,848,217,461.05/119,496.62
  6. Step 6: Final answer
    x = 90,782.63

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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.