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Finding the Fourth Proportional to 352,447.40, 528,726.36 and 115,736.24

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Solution

The fourth proportional to 352,447.40, 528,726.36 and 115,736.24 is: 173,622.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    352,447.40 : 528,726.36 = 115,736.24 : x
  2. Step 2: Convert to fraction form
    352,447.40/528,726.36 = 115,736.24/x
  3. Step 3: Cross multiply
    352,447.40x = 528,726.36 × 115,736.24
  4. Step 4: Simplify right side
    352,447.40x = 61,192,800,895.29
  5. Step 5: Solve for x
    x = 61,192,800,895.29/352,447.40
  6. Step 6: Final answer
    x = 173,622.51

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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.