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Finding the Fourth Proportional to 169,622.40, 254,433.60 and 159,945.60

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Solution

The fourth proportional to 169,622.40, 254,433.60 and 159,945.60 is: 239,918.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    169,622.40 : 254,433.60 = 159,945.60 : x
  2. Step 2: Convert to fraction form
    169,622.40/254,433.60 = 159,945.60/x
  3. Step 3: Cross multiply
    169,622.40x = 254,433.60 × 159,945.60
  4. Step 4: Simplify right side
    169,622.40x = 40,695,534,812.16
  5. Step 5: Solve for x
    x = 40,695,534,812.16/169,622.40
  6. Step 6: Final answer
    x = 239,918.40

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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.