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Finding the Fourth Proportional to 273,992,402.82, 411,049,055.64 and 79,919,006.97

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Solution

The fourth proportional to 273,992,402.82, 411,049,055.64 and 79,919,006.97 is: 119,896,143.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    273,992,402.82 : 411,049,055.64 = 79,919,006.97 : x
  2. Step 2: Convert to fraction form
    273,992,402.82/411,049,055.64 = 79,919,006.97/x
  3. Step 3: Cross multiply
    273,992,402.82x = 411,049,055.64 × 79,919,006.97
  4. Step 4: Simplify right side
    273,992,402.82x = 32,850,632,342,705,076
  5. Step 5: Solve for x
    x = 32,850,632,342,705,076/273,992,402.82
  6. Step 6: Final answer
    x = 119,896,143.12

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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.