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Finding the Fourth Proportional to 343,604.89, 515,386.29 and 154,014.31

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Solution

The fourth proportional to 343,604.89, 515,386.29 and 154,014.31 is: 231,012.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    343,604.89 : 515,386.29 = 154,014.31 : x
  2. Step 2: Convert to fraction form
    343,604.89/515,386.29 = 154,014.31/x
  3. Step 3: Cross multiply
    343,604.89x = 515,386.29 × 154,014.31
  4. Step 4: Simplify right side
    343,604.89x = 79,376,865,059.60
  5. Step 5: Solve for x
    x = 79,376,865,059.60/343,604.89
  6. Step 6: Final answer
    x = 231,012.04

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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.