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Finding the Fourth Proportional to 543,609.36, 815,092.07 and 164,415.15

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Solution

The fourth proportional to 543,609.36, 815,092.07 and 164,415.15 is: 246,525.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    543,609.36 : 815,092.07 = 164,415.15 : x
  2. Step 2: Convert to fraction form
    543,609.36/815,092.07 = 164,415.15/x
  3. Step 3: Cross multiply
    543,609.36x = 815,092.07 × 164,415.15
  4. Step 4: Simplify right side
    543,609.36x = 134,013,484,130.79
  5. Step 5: Solve for x
    x = 134,013,484,130.79/543,609.36
  6. Step 6: Final answer
    x = 246,525.34

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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.