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Finding the Fourth Proportional to 162,308.07, 223,996.73 and 89,709.41

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Solution

The fourth proportional to 162,308.07, 223,996.73 and 89,709.41 is: 123,805.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    162,308.07 : 223,996.73 = 89,709.41 : x
  2. Step 2: Convert to fraction form
    162,308.07/223,996.73 = 89,709.41/x
  3. Step 3: Cross multiply
    162,308.07x = 223,996.73 × 89,709.41
  4. Step 4: Simplify right side
    162,308.07x = 20,094,612,921.70
  5. Step 5: Solve for x
    x = 20,094,612,921.70/162,308.07
  6. Step 6: Final answer
    x = 123,805.38

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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.