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Finding the Fourth Proportional to 20,160,964.90, 30,199,456.94 and 20,160,964.90

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Solution

The fourth proportional to 20,160,964.90, 30,199,456.94 and 20,160,964.90 is: 30,199,456.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,160,964.90 : 30,199,456.94 = 20,160,964.90 : x
  2. Step 2: Convert to fraction form
    20,160,964.90/30,199,456.94 = 20,160,964.90/x
  3. Step 3: Cross multiply
    20,160,964.90x = 30,199,456.94 × 20,160,964.90
  4. Step 4: Simplify right side
    20,160,964.90x = 608,850,191,366,401.38
  5. Step 5: Solve for x
    x = 608,850,191,366,401.38/20,160,964.90
  6. Step 6: Final answer
    x = 30,199,456.94

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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.