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Finding the Fourth Proportional to 239,810.02, 330,938.62 and 132,379.80

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Solution

The fourth proportional to 239,810.02, 330,938.62 and 132,379.80 is: 182,684.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    239,810.02 : 330,938.62 = 132,379.80 : x
  2. Step 2: Convert to fraction form
    239,810.02/330,938.62 = 132,379.80/x
  3. Step 3: Cross multiply
    239,810.02x = 330,938.62 × 132,379.80
  4. Step 4: Simplify right side
    239,810.02x = 43,809,588,327.88
  5. Step 5: Solve for x
    x = 43,809,588,327.88/239,810.02
  6. Step 6: Final answer
    x = 182,684.56

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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.