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Finding the Fourth Proportional to 352,912.05, 487,019.25 and 191,769.03

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Solution

The fourth proportional to 352,912.05, 487,019.25 and 191,769.03 is: 264,641.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    352,912.05 : 487,019.25 = 191,769.03 : x
  2. Step 2: Convert to fraction form
    352,912.05/487,019.25 = 191,769.03/x
  3. Step 3: Cross multiply
    352,912.05x = 487,019.25 × 191,769.03
  4. Step 4: Simplify right side
    352,912.05x = 93,395,209,163.83
  5. Step 5: Solve for x
    x = 93,395,209,163.83/352,912.05
  6. Step 6: Final answer
    x = 264,641.60

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.