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Finding the Fourth Proportional to 135,958,687.80, 203,938,031.70 and 114,435,327.30

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Solution

The fourth proportional to 135,958,687.80, 203,938,031.70 and 114,435,327.30 is: 171,652,990.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,958,687.80 : 203,938,031.70 = 114,435,327.30 : x
  2. Step 2: Convert to fraction form
    135,958,687.80/203,938,031.70 = 114,435,327.30/x
  3. Step 3: Cross multiply
    135,958,687.80x = 203,938,031.70 × 114,435,327.30
  4. Step 4: Simplify right side
    135,958,687.80x = 23,337,715,406,507,272
  5. Step 5: Solve for x
    x = 23,337,715,406,507,272/135,958,687.80
  6. Step 6: Final answer
    x = 171,652,990.95

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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.