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Finding the Fourth Proportional to 264,328.51, 364,772.43 and 143,469.79

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Solution

The fourth proportional to 264,328.51, 364,772.43 and 143,469.79 is: 197,987.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    264,328.51 : 364,772.43 = 143,469.79 : x
  2. Step 2: Convert to fraction form
    264,328.51/364,772.43 = 143,469.79/x
  3. Step 3: Cross multiply
    264,328.51x = 364,772.43 × 143,469.79
  4. Step 4: Simplify right side
    264,328.51x = 52,333,823,017.96
  5. Step 5: Solve for x
    x = 52,333,823,017.96/264,328.51
  6. Step 6: Final answer
    x = 197,987.81

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.