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Finding the Fourth Proportional to 221,273,115.40, 331,909,673.10 and 221,273,115.40

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Solution

The fourth proportional to 221,273,115.40, 331,909,673.10 and 221,273,115.40 is: 331,909,673.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,273,115.40 : 331,909,673.10 = 221,273,115.40 : x
  2. Step 2: Convert to fraction form
    221,273,115.40/331,909,673.10 = 221,273,115.40/x
  3. Step 3: Cross multiply
    221,273,115.40x = 331,909,673.10 × 221,273,115.40
  4. Step 4: Simplify right side
    221,273,115.40x = 73,442,687,398,232,576
  5. Step 5: Solve for x
    x = 73,442,687,398,232,576/221,273,115.40
  6. Step 6: Final answer
    x = 331,909,673.10

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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.