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Finding the Fourth Proportional to 52,645.44, 78,968.64 and 19,366.08

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Solution

The fourth proportional to 52,645.44, 78,968.64 and 19,366.08 is: 29,049.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,645.44 : 78,968.64 = 19,366.08 : x
  2. Step 2: Convert to fraction form
    52,645.44/78,968.64 = 19,366.08/x
  3. Step 3: Cross multiply
    52,645.44x = 78,968.64 × 19,366.08
  4. Step 4: Simplify right side
    52,645.44x = 1,529,312,999.73
  5. Step 5: Solve for x
    x = 1,529,312,999.73/52,645.44
  6. Step 6: Final answer
    x = 29,049.30

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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.