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Finding the Fourth Proportional to 169,020.40, 253,530.60 and 161,244.40

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Solution

The fourth proportional to 169,020.40, 253,530.60 and 161,244.40 is: 241,866.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    169,020.40 : 253,530.60 = 161,244.40 : x
  2. Step 2: Convert to fraction form
    169,020.40/253,530.60 = 161,244.40/x
  3. Step 3: Cross multiply
    169,020.40x = 253,530.60 × 161,244.40
  4. Step 4: Simplify right side
    169,020.40x = 40,880,389,478.64
  5. Step 5: Solve for x
    x = 40,880,389,478.64/169,020.40
  6. Step 6: Final answer
    x = 241,866.60

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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.