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Finding the Fourth Proportional to 106,572.64, 159,858.96 and 53,997.16

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Solution

The fourth proportional to 106,572.64, 159,858.96 and 53,997.16 is: 80,995.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    106,572.64 : 159,858.96 = 53,997.16 : x
  2. Step 2: Convert to fraction form
    106,572.64/159,858.96 = 53,997.16/x
  3. Step 3: Cross multiply
    106,572.64x = 159,858.96 × 53,997.16
  4. Step 4: Simplify right side
    106,572.64x = 8,631,929,840.55
  5. Step 5: Solve for x
    x = 8,631,929,840.55/106,572.64
  6. Step 6: Final answer
    x = 80,995.74

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Similar ratio
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1.5x scale

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.