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Finding the Fourth Proportional to 171,641.80, 257,511.30 and 53,325.10

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Solution

The fourth proportional to 171,641.80, 257,511.30 and 53,325.10 is: 80,002.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    171,641.80 : 257,511.30 = 53,325.10 : x
  2. Step 2: Convert to fraction form
    171,641.80/257,511.30 = 53,325.10/x
  3. Step 3: Cross multiply
    171,641.80x = 257,511.30 × 53,325.10
  4. Step 4: Simplify right side
    171,641.80x = 13,731,815,823.63
  5. Step 5: Solve for x
    x = 13,731,815,823.63/171,641.80
  6. Step 6: Final answer
    x = 80,002.75

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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.