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Finding the Fourth Proportional to 353,172.84, 487,365.09 and 192,028.02

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Solution

The fourth proportional to 353,172.84, 487,365.09 and 192,028.02 is: 264,991.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    353,172.84 : 487,365.09 = 192,028.02 : x
  2. Step 2: Convert to fraction form
    353,172.84/487,365.09 = 192,028.02/x
  3. Step 3: Cross multiply
    353,172.84x = 487,365.09 × 192,028.02
  4. Step 4: Simplify right side
    353,172.84x = 93,587,750,702.10
  5. Step 5: Solve for x
    x = 93,587,750,702.10/353,172.84
  6. Step 6: Final answer
    x = 264,991.36

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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.