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Finding the Fourth Proportional to 156,515,832.60, 218,835,187.50 and 156,515,832.60

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Solution

The fourth proportional to 156,515,832.60, 218,835,187.50 and 156,515,832.60 is: 218,835,187.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,515,832.60 : 218,835,187.50 = 156,515,832.60 : x
  2. Step 2: Convert to fraction form
    156,515,832.60/218,835,187.50 = 156,515,832.60/x
  3. Step 3: Cross multiply
    156,515,832.60x = 218,835,187.50 × 156,515,832.60
  4. Step 4: Simplify right side
    156,515,832.60x = 34,251,171,573,739,612
  5. Step 5: Solve for x
    x = 34,251,171,573,739,612/156,515,832.60
  6. Step 6: Final answer
    x = 218,835,187.50

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Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.