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Finding the Fourth Proportional to 96,777,872.80, 145,166,809.20 and 60,946,064.80

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Solution

The fourth proportional to 96,777,872.80, 145,166,809.20 and 60,946,064.80 is: 91,419,097.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    96,777,872.80 : 145,166,809.20 = 60,946,064.80 : x
  2. Step 2: Convert to fraction form
    96,777,872.80/145,166,809.20 = 60,946,064.80/x
  3. Step 3: Cross multiply
    96,777,872.80x = 145,166,809.20 × 60,946,064.80
  4. Step 4: Simplify right side
    96,777,872.80x = 8,847,345,760,312,435
  5. Step 5: Solve for x
    x = 8,847,345,760,312,435/96,777,872.80
  6. Step 6: Final answer
    x = 91,419,097.20

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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.