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Finding the Fourth Proportional to 64,503,317.60, 96,691,990.80 and 57,700,872.80

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Solution

The fourth proportional to 64,503,317.60, 96,691,990.80 and 57,700,872.80 is: 86,494,965.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,503,317.60 : 96,691,990.80 = 57,700,872.80 : x
  2. Step 2: Convert to fraction form
    64,503,317.60/96,691,990.80 = 57,700,872.80/x
  3. Step 3: Cross multiply
    64,503,317.60x = 96,691,990.80 × 57,700,872.80
  4. Step 4: Simplify right side
    64,503,317.60x = 5,579,212,261,929,570
  5. Step 5: Solve for x
    x = 5,579,212,261,929,570/64,503,317.60
  6. Step 6: Final answer
    x = 86,494,965.99

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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.