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Finding the Fourth Proportional to 541,359.36, 812,020.32 and 141,996.96

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Solution

The fourth proportional to 541,359.36, 812,020.32 and 141,996.96 is: 212,990.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    541,359.36 : 812,020.32 = 141,996.96 : x
  2. Step 2: Convert to fraction form
    541,359.36/812,020.32 = 141,996.96/x
  3. Step 3: Cross multiply
    541,359.36x = 812,020.32 × 141,996.96
  4. Step 4: Simplify right side
    541,359.36x = 115,304,416,898.23
  5. Step 5: Solve for x
    x = 115,304,416,898.23/541,359.36
  6. Step 6: Final answer
    x = 212,990.53

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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.