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Finding the Fourth Proportional to 161,662.70, 223,017.27 and 125,605.96

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Solution

The fourth proportional to 161,662.70, 223,017.27 and 125,605.96 is: 173,276.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,662.70 : 223,017.27 = 125,605.96 : x
  2. Step 2: Convert to fraction form
    161,662.70/223,017.27 = 125,605.96/x
  3. Step 3: Cross multiply
    161,662.70x = 223,017.27 × 125,605.96
  4. Step 4: Simplify right side
    161,662.70x = 28,012,297,266.36
  5. Step 5: Solve for x
    x = 28,012,297,266.36/161,662.70
  6. Step 6: Final answer
    x = 173,276.19

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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.