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Finding the Fourth Proportional to 310,392.45, 465,490.26 and 132,851.79

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Solution

The fourth proportional to 310,392.45, 465,490.26 and 132,851.79 is: 199,235.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    310,392.45 : 465,490.26 = 132,851.79 : x
  2. Step 2: Convert to fraction form
    310,392.45/465,490.26 = 132,851.79/x
  3. Step 3: Cross multiply
    310,392.45x = 465,490.26 × 132,851.79
  4. Step 4: Simplify right side
    310,392.45x = 61,841,214,268.57
  5. Step 5: Solve for x
    x = 61,841,214,268.57/310,392.45
  6. Step 6: Final answer
    x = 199,235.56

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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.