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Finding the Fourth Proportional to 264,341.70, 364,781.79 and 143,480.43

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Solution

The fourth proportional to 264,341.70, 364,781.79 and 143,480.43 is: 197,997.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    264,341.70 : 364,781.79 = 143,480.43 : x
  2. Step 2: Convert to fraction form
    264,341.70/364,781.79 = 143,480.43/x
  3. Step 3: Cross multiply
    264,341.70x = 364,781.79 × 143,480.43
  4. Step 4: Simplify right side
    264,341.70x = 52,339,048,085.37
  5. Step 5: Solve for x
    x = 52,339,048,085.37/264,341.70
  6. Step 6: Final answer
    x = 197,997.70

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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.