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Finding the Fourth Proportional to 352,195.40, 528,098.70 and 115,416.20

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Solution

The fourth proportional to 352,195.40, 528,098.70 and 115,416.20 is: 173,060.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    352,195.40 : 528,098.70 = 115,416.20 : x
  2. Step 2: Convert to fraction form
    352,195.40/528,098.70 = 115,416.20/x
  3. Step 3: Cross multiply
    352,195.40x = 528,098.70 × 115,416.20
  4. Step 4: Simplify right side
    352,195.40x = 60,951,145,178.94
  5. Step 5: Solve for x
    x = 60,951,145,178.94/352,195.40
  6. Step 6: Final answer
    x = 173,060.59

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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.