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Finding the Fourth Proportional to 235,960.80, 353,804.51 and 161,171.32

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Solution

The fourth proportional to 235,960.80, 353,804.51 and 161,171.32 is: 241,663.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    235,960.80 : 353,804.51 = 161,171.32 : x
  2. Step 2: Convert to fraction form
    235,960.80/353,804.51 = 161,171.32/x
  3. Step 3: Cross multiply
    235,960.80x = 353,804.51 × 161,171.32
  4. Step 4: Simplify right side
    235,960.80x = 57,023,139,173.87
  5. Step 5: Solve for x
    x = 57,023,139,173.87/235,960.80
  6. Step 6: Final answer
    x = 241,663.62

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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.