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Finding the Fourth Proportional to 544,641.60, 816,968.20 and 165,623.98

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Solution

The fourth proportional to 544,641.60, 816,968.20 and 165,623.98 is: 248,437.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    544,641.60 : 816,968.20 = 165,623.98 : x
  2. Step 2: Convert to fraction form
    544,641.60/816,968.20 = 165,623.98/x
  3. Step 3: Cross multiply
    544,641.60x = 816,968.20 × 165,623.98
  4. Step 4: Simplify right side
    544,641.60x = 135,309,524,817.44
  5. Step 5: Solve for x
    x = 135,309,524,817.44/544,641.60
  6. Step 6: Final answer
    x = 248,437.73

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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.