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Finding the Fourth Proportional to 16,802,142.80, 25,203,214.20 and 16,802,142.80

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Solution

The fourth proportional to 16,802,142.80, 25,203,214.20 and 16,802,142.80 is: 25,203,214.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,802,142.80 : 25,203,214.20 = 16,802,142.80 : x
  2. Step 2: Convert to fraction form
    16,802,142.80/25,203,214.20 = 16,802,142.80/x
  3. Step 3: Cross multiply
    16,802,142.80x = 25,203,214.20 × 16,802,142.80
  4. Step 4: Simplify right side
    16,802,142.80x = 423,468,004,007,387.75
  5. Step 5: Solve for x
    x = 423,468,004,007,387.75/16,802,142.80
  6. Step 6: Final answer
    x = 25,203,214.20

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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.