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Finding the Fourth Proportional to 68,970.44, 95,190.30 and 64,468

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Solution

The fourth proportional to 68,970.44, 95,190.30 and 64,468 is: 88,976.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,970.44 : 95,190.30 = 64,468 : x
  2. Step 2: Convert to fraction form
    68,970.44/95,190.30 = 64,468/x
  3. Step 3: Cross multiply
    68,970.44x = 95,190.30 × 64,468
  4. Step 4: Simplify right side
    68,970.44x = 6,136,728,260.40
  5. Step 5: Solve for x
    x = 6,136,728,260.40/68,970.44
  6. Step 6: Final answer
    x = 88,976.21

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.