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Finding the Fourth Proportional to 316,747,301.20, 475,120,951.80 and 195,646,987.60

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Solution

The fourth proportional to 316,747,301.20, 475,120,951.80 and 195,646,987.60 is: 293,470,481.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    316,747,301.20 : 475,120,951.80 = 195,646,987.60 : x
  2. Step 2: Convert to fraction form
    316,747,301.20/475,120,951.80 = 195,646,987.60/x
  3. Step 3: Cross multiply
    316,747,301.20x = 475,120,951.80 × 195,646,987.60
  4. Step 4: Simplify right side
    316,747,301.20x = 92,955,982,965,314,800
  5. Step 5: Solve for x
    x = 92,955,982,965,314,800/316,747,301.20
  6. Step 6: Final answer
    x = 293,470,481.40

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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.