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Finding the Fourth Proportional to 215,702,451.90, 323,553,677.85 and 215,702,451.90

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Solution

The fourth proportional to 215,702,451.90, 323,553,677.85 and 215,702,451.90 is: 323,553,677.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,702,451.90 : 323,553,677.85 = 215,702,451.90 : x
  2. Step 2: Convert to fraction form
    215,702,451.90/323,553,677.85 = 215,702,451.90/x
  3. Step 3: Cross multiply
    215,702,451.90x = 323,553,677.85 × 215,702,451.90
  4. Step 4: Simplify right side
    215,702,451.90x = 69,791,321,633,507,728
  5. Step 5: Solve for x
    x = 69,791,321,633,507,728/215,702,451.90
  6. Step 6: Final answer
    x = 323,553,677.85

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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.