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Finding the Fourth Proportional to 353,518.27, 487,865.48 and 192,383.71

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Solution

The fourth proportional to 353,518.27, 487,865.48 and 192,383.71 is: 265,495.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    353,518.27 : 487,865.48 = 192,383.71 : x
  2. Step 2: Convert to fraction form
    353,518.27/487,865.48 = 192,383.71/x
  3. Step 3: Cross multiply
    353,518.27x = 487,865.48 × 192,383.71
  4. Step 4: Simplify right side
    353,518.27x = 93,857,368,841.75
  5. Step 5: Solve for x
    x = 93,857,368,841.75/353,518.27
  6. Step 6: Final answer
    x = 265,495.10

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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.