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Finding the Fourth Proportional to 64,503,321.60, 96,691,996.80 and 57,700,876.80

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Solution

The fourth proportional to 64,503,321.60, 96,691,996.80 and 57,700,876.80 is: 86,494,971.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,503,321.60 : 96,691,996.80 = 57,700,876.80 : x
  2. Step 2: Convert to fraction form
    64,503,321.60/96,691,996.80 = 57,700,876.80/x
  3. Step 3: Cross multiply
    64,503,321.60x = 96,691,996.80 × 57,700,876.80
  4. Step 4: Simplify right side
    64,503,321.60x = 5,579,212,994,902,794
  5. Step 5: Solve for x
    x = 5,579,212,994,902,794/64,503,321.60
  6. Step 6: Final answer
    x = 86,494,971.99

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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.