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Finding the Fourth Proportional to 352,351.60, 528,138.60 and 194,693.20

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Solution

The fourth proportional to 352,351.60, 528,138.60 and 194,693.20 is: 291,824.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    352,351.60 : 528,138.60 = 194,693.20 : x
  2. Step 2: Convert to fraction form
    352,351.60/528,138.60 = 194,693.20/x
  3. Step 3: Cross multiply
    352,351.60x = 528,138.60 × 194,693.20
  4. Step 4: Simplify right side
    352,351.60x = 102,824,994,077.52
  5. Step 5: Solve for x
    x = 102,824,994,077.52/352,351.60
  6. Step 6: Final answer
    x = 291,824.97

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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.