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Finding the Fourth Proportional to 353,171.71, 487,363.53 and 192,026.89

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Solution

The fourth proportional to 353,171.71, 487,363.53 and 192,026.89 is: 264,989.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    353,171.71 : 487,363.53 = 192,026.89 : x
  2. Step 2: Convert to fraction form
    353,171.71/487,363.53 = 192,026.89/x
  3. Step 3: Cross multiply
    353,171.71x = 487,363.53 × 192,026.89
  4. Step 4: Simplify right side
    353,171.71x = 93,586,904,294.63
  5. Step 5: Solve for x
    x = 93,586,904,294.63/353,171.71
  6. Step 6: Final answer
    x = 264,989.81

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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.