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Finding the Fourth Proportional to 353,172.71, 487,364.91 and 192,027.89

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Solution

The fourth proportional to 353,172.71, 487,364.91 and 192,027.89 is: 264,991.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    353,172.71 : 487,364.91 = 192,027.89 : x
  2. Step 2: Convert to fraction form
    353,172.71/487,364.91 = 192,027.89/x
  3. Step 3: Cross multiply
    353,172.71x = 487,364.91 × 192,027.89
  4. Step 4: Simplify right side
    353,172.71x = 93,587,655,327.34
  5. Step 5: Solve for x
    x = 93,587,655,327.34/353,172.71
  6. Step 6: Final answer
    x = 264,991.19

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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.