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Finding the Fourth Proportional to 55,005,579.80, 82,508,369.70 and 55,005,579.80

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Solution

The fourth proportional to 55,005,579.80, 82,508,369.70 and 55,005,579.80 is: 82,508,369.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,005,579.80 : 82,508,369.70 = 55,005,579.80 : x
  2. Step 2: Convert to fraction form
    55,005,579.80/82,508,369.70 = 55,005,579.80/x
  3. Step 3: Cross multiply
    55,005,579.80x = 82,508,369.70 × 55,005,579.80
  4. Step 4: Simplify right side
    55,005,579.80x = 4,538,420,713,701,252
  5. Step 5: Solve for x
    x = 4,538,420,713,701,252/55,005,579.80
  6. Step 6: Final answer
    x = 82,508,369.70

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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.