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Finding the Fourth Proportional to 235,963.40, 353,945.10 and 161,313.80

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Solution

The fourth proportional to 235,963.40, 353,945.10 and 161,313.80 is: 241,970.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    235,963.40 : 353,945.10 = 161,313.80 : x
  2. Step 2: Convert to fraction form
    235,963.40/353,945.10 = 161,313.80/x
  3. Step 3: Cross multiply
    235,963.40x = 353,945.10 × 161,313.80
  4. Step 4: Simplify right side
    235,963.40x = 57,096,229,072.38
  5. Step 5: Solve for x
    x = 57,096,229,072.38/235,963.40
  6. Step 6: Final answer
    x = 241,970.70

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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.