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Finding the Fourth Proportional to 352,993.14, 529,714.89 and 128,332.01

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Solution

The fourth proportional to 352,993.14, 529,714.89 and 128,332.01 is: 192,579.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    352,993.14 : 529,714.89 = 128,332.01 : x
  2. Step 2: Convert to fraction form
    352,993.14/529,714.89 = 128,332.01/x
  3. Step 3: Cross multiply
    352,993.14x = 529,714.89 × 128,332.01
  4. Step 4: Simplify right side
    352,993.14x = 67,979,377,884.92
  5. Step 5: Solve for x
    x = 67,979,377,884.92/352,993.14
  6. Step 6: Final answer
    x = 192,579.88

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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.