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Finding the Fourth Proportional to 64,361,961.72, 96,540,805.80 and 27,970,386.95

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Solution

The fourth proportional to 64,361,961.72, 96,540,805.80 and 27,970,386.95 is: 41,954,651.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,361,961.72 : 96,540,805.80 = 27,970,386.95 : x
  2. Step 2: Convert to fraction form
    64,361,961.72/96,540,805.80 = 27,970,386.95/x
  3. Step 3: Cross multiply
    64,361,961.72x = 96,540,805.80 × 27,970,386.95
  4. Step 4: Simplify right side
    64,361,961.72x = 2,700,283,694,932,156.50
  5. Step 5: Solve for x
    x = 2,700,283,694,932,156.50/64,361,961.72
  6. Step 6: Final answer
    x = 41,954,651.83

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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.