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Finding the Fourth Proportional to 161,672.97, 223,114.25 and 93,690.07

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Solution

The fourth proportional to 161,672.97, 223,114.25 and 93,690.07 is: 129,295.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,672.97 : 223,114.25 = 93,690.07 : x
  2. Step 2: Convert to fraction form
    161,672.97/223,114.25 = 93,690.07/x
  3. Step 3: Cross multiply
    161,672.97x = 223,114.25 × 93,690.07
  4. Step 4: Simplify right side
    161,672.97x = 20,903,589,700.50
  5. Step 5: Solve for x
    x = 20,903,589,700.50/161,672.97
  6. Step 6: Final answer
    x = 129,295.51

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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.