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Finding the Fourth Proportional to 117,876,954.80, 176,815,432.20 and 60,481,326.80

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Solution

The fourth proportional to 117,876,954.80, 176,815,432.20 and 60,481,326.80 is: 90,721,990.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,876,954.80 : 176,815,432.20 = 60,481,326.80 : x
  2. Step 2: Convert to fraction form
    117,876,954.80/176,815,432.20 = 60,481,326.80/x
  3. Step 3: Cross multiply
    117,876,954.80x = 176,815,432.20 × 60,481,326.80
  4. Step 4: Simplify right side
    117,876,954.80x = 10,694,031,938,171,442
  5. Step 5: Solve for x
    x = 10,694,031,938,171,442/117,876,954.80
  6. Step 6: Final answer
    x = 90,721,990.20

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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.