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Finding the Fourth Proportional to 196,677,728.80, 295,016,593.20 and 73,855,808.80

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Solution

The fourth proportional to 196,677,728.80, 295,016,593.20 and 73,855,808.80 is: 110,783,713.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    196,677,728.80 : 295,016,593.20 = 73,855,808.80 : x
  2. Step 2: Convert to fraction form
    196,677,728.80/295,016,593.20 = 73,855,808.80/x
  3. Step 3: Cross multiply
    196,677,728.80x = 295,016,593.20 × 73,855,808.80
  4. Step 4: Simplify right side
    196,677,728.80x = 21,788,689,100,206,580
  5. Step 5: Solve for x
    x = 21,788,689,100,206,580/196,677,728.80
  6. Step 6: Final answer
    x = 110,783,713.20

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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.