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Finding the Fourth Proportional to 539,903,790, 809,993,786.84 and 156,951,342

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Solution

The fourth proportional to 539,903,790, 809,993,786.84 and 156,951,342 is: 235,467,159.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    539,903,790 : 809,993,786.84 = 156,951,342 : x
  2. Step 2: Convert to fraction form
    539,903,790/809,993,786.84 = 156,951,342/x
  3. Step 3: Cross multiply
    539,903,790x = 809,993,786.84 × 156,951,342
  4. Step 4: Simplify right side
    539,903,790x = 127,129,611,856,199,952
  5. Step 5: Solve for x
    x = 127,129,611,856,199,952/539,903,790
  6. Step 6: Final answer
    x = 235,467,159.54

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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.