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Finding the Fourth Proportional to 316,996.38, 475,470.33 and 92,358.54

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Solution

The fourth proportional to 316,996.38, 475,470.33 and 92,358.54 is: 138,530.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    316,996.38 : 475,470.33 = 92,358.54 : x
  2. Step 2: Convert to fraction form
    316,996.38/475,470.33 = 92,358.54/x
  3. Step 3: Cross multiply
    316,996.38x = 475,470.33 × 92,358.54
  4. Step 4: Simplify right side
    316,996.38x = 43,913,745,492.12
  5. Step 5: Solve for x
    x = 43,913,745,492.12/316,996.38
  6. Step 6: Final answer
    x = 138,530.75

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.