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Finding the Fourth Proportional to 20,160,940.65, 30,199,420.58 and 20,160,940.65

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Solution

The fourth proportional to 20,160,940.65, 30,199,420.58 and 20,160,940.65 is: 30,199,420.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,160,940.65 : 30,199,420.58 = 20,160,940.65 : x
  2. Step 2: Convert to fraction form
    20,160,940.65/30,199,420.58 = 20,160,940.65/x
  3. Step 3: Cross multiply
    20,160,940.65x = 30,199,420.58 × 20,160,940.65
  4. Step 4: Simplify right side
    20,160,940.65x = 608,848,725,876,963.88
  5. Step 5: Solve for x
    x = 608,848,725,876,963.88/20,160,940.65
  6. Step 6: Final answer
    x = 30,199,420.58

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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.