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Finding the Fourth Proportional to 325,892.70, 488,887.65 and 115,514.10

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Solution

The fourth proportional to 325,892.70, 488,887.65 and 115,514.10 is: 173,288.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    325,892.70 : 488,887.65 = 115,514.10 : x
  2. Step 2: Convert to fraction form
    325,892.70/488,887.65 = 115,514.10/x
  3. Step 3: Cross multiply
    325,892.70x = 488,887.65 × 115,514.10
  4. Step 4: Simplify right side
    325,892.70x = 56,473,416,890.87
  5. Step 5: Solve for x
    x = 56,473,416,890.87/325,892.70
  6. Step 6: Final answer
    x = 173,288.38

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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.