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Finding the Fourth Proportional to 171,681.20, 257,546.10 and 53,340.20

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Solution

The fourth proportional to 171,681.20, 257,546.10 and 53,340.20 is: 80,017.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    171,681.20 : 257,546.10 = 53,340.20 : x
  2. Step 2: Convert to fraction form
    171,681.20/257,546.10 = 53,340.20/x
  3. Step 3: Cross multiply
    171,681.20x = 257,546.10 × 53,340.20
  4. Step 4: Simplify right side
    171,681.20x = 13,737,560,483.22
  5. Step 5: Solve for x
    x = 13,737,560,483.22/171,681.20
  6. Step 6: Final answer
    x = 80,017.85

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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.