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Finding the Fourth Proportional to 352,928.52, 529,491.60 and 142,714.08

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Solution

The fourth proportional to 352,928.52, 529,491.60 and 142,714.08 is: 214,111.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    352,928.52 : 529,491.60 = 142,714.08 : x
  2. Step 2: Convert to fraction form
    352,928.52/529,491.60 = 142,714.08/x
  3. Step 3: Cross multiply
    352,928.52x = 529,491.60 × 142,714.08
  4. Step 4: Simplify right side
    352,928.52x = 75,565,906,561.73
  5. Step 5: Solve for x
    x = 75,565,906,561.73/352,928.52
  6. Step 6: Final answer
    x = 214,111.08

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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.