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Finding the Fourth Proportional to 352,792.88, 529,190.76 and 86,555.12

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Solution

The fourth proportional to 352,792.88, 529,190.76 and 86,555.12 is: 129,833.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    352,792.88 : 529,190.76 = 86,555.12 : x
  2. Step 2: Convert to fraction form
    352,792.88/529,190.76 = 86,555.12/x
  3. Step 3: Cross multiply
    352,792.88x = 529,190.76 × 86,555.12
  4. Step 4: Simplify right side
    352,792.88x = 45,804,169,734.69
  5. Step 5: Solve for x
    x = 45,804,169,734.69/352,792.88
  6. Step 6: Final answer
    x = 129,833.03

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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.