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Finding the Fourth Proportional to 117,515,753.20, 164,692,115.60 and 117,515,753.20

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Solution

The fourth proportional to 117,515,753.20, 164,692,115.60 and 117,515,753.20 is: 164,692,115.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,515,753.20 : 164,692,115.60 = 117,515,753.20 : x
  2. Step 2: Convert to fraction form
    117,515,753.20/164,692,115.60 = 117,515,753.20/x
  3. Step 3: Cross multiply
    117,515,753.20x = 164,692,115.60 × 117,515,753.20
  4. Step 4: Simplify right side
    117,515,753.20x = 19,353,918,010,835,468
  5. Step 5: Solve for x
    x = 19,353,918,010,835,468/117,515,753.20
  6. Step 6: Final answer
    x = 164,692,115.60

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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.