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Finding the Fourth Proportional to 352,023.70, 528,035.55 and 115,309.30

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Solution

The fourth proportional to 352,023.70, 528,035.55 and 115,309.30 is: 172,963.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    352,023.70 : 528,035.55 = 115,309.30 : x
  2. Step 2: Convert to fraction form
    352,023.70/528,035.55 = 115,309.30/x
  3. Step 3: Cross multiply
    352,023.70x = 528,035.55 × 115,309.30
  4. Step 4: Simplify right side
    352,023.70x = 60,887,409,645.62
  5. Step 5: Solve for x
    x = 60,887,409,645.62/352,023.70
  6. Step 6: Final answer
    x = 172,963.95

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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.