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Finding the Fourth Proportional to 352,956.52, 529,533.60 and 142,742.08

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Solution

The fourth proportional to 352,956.52, 529,533.60 and 142,742.08 is: 214,153.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    352,956.52 : 529,533.60 = 142,742.08 : x
  2. Step 2: Convert to fraction form
    352,956.52/529,533.60 = 142,742.08/x
  3. Step 3: Cross multiply
    352,956.52x = 529,533.60 × 142,742.08
  4. Step 4: Simplify right side
    352,956.52x = 75,586,727,493.89
  5. Step 5: Solve for x
    x = 75,586,727,493.89/352,956.52
  6. Step 6: Final answer
    x = 214,153.08

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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.