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Finding the Fourth Proportional to 208,690,675.60, 313,036,013.40 and 208,690,675.60

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Solution

The fourth proportional to 208,690,675.60, 313,036,013.40 and 208,690,675.60 is: 313,036,013.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,690,675.60 : 313,036,013.40 = 208,690,675.60 : x
  2. Step 2: Convert to fraction form
    208,690,675.60/313,036,013.40 = 208,690,675.60/x
  3. Step 3: Cross multiply
    208,690,675.60x = 313,036,013.40 × 208,690,675.60
  4. Step 4: Simplify right side
    208,690,675.60x = 65,327,697,123,576,648
  5. Step 5: Solve for x
    x = 65,327,697,123,576,648/208,690,675.60
  6. Step 6: Final answer
    x = 313,036,013.40

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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.