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Finding the Fourth Proportional to 541,615.56, 812,553.12 and 167,638.56

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Solution

The fourth proportional to 541,615.56, 812,553.12 and 167,638.56 is: 251,498.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    541,615.56 : 812,553.12 = 167,638.56 : x
  2. Step 2: Convert to fraction form
    541,615.56/812,553.12 = 167,638.56/x
  3. Step 3: Cross multiply
    541,615.56x = 812,553.12 × 167,638.56
  4. Step 4: Simplify right side
    541,615.56x = 136,215,234,960.31
  5. Step 5: Solve for x
    x = 136,215,234,960.31/541,615.56
  6. Step 6: Final answer
    x = 251,498.01

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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.