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Finding the Fourth Proportional to 352,300.97, 528,506.54 and 115,589.81

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Solution

The fourth proportional to 352,300.97, 528,506.54 and 115,589.81 is: 173,402.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    352,300.97 : 528,506.54 = 115,589.81 : x
  2. Step 2: Convert to fraction form
    352,300.97/528,506.54 = 115,589.81/x
  3. Step 3: Cross multiply
    352,300.97x = 528,506.54 × 115,589.81
  4. Step 4: Simplify right side
    352,300.97x = 61,089,970,542.36
  5. Step 5: Solve for x
    x = 61,089,970,542.36/352,300.97
  6. Step 6: Final answer
    x = 173,402.79

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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.