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Finding the Fourth Proportional to 171,706.80, 257,560.20 and 97,057.20

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Solution

The fourth proportional to 171,706.80, 257,560.20 and 97,057.20 is: 145,585.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    171,706.80 : 257,560.20 = 97,057.20 : x
  2. Step 2: Convert to fraction form
    171,706.80/257,560.20 = 97,057.20/x
  3. Step 3: Cross multiply
    171,706.80x = 257,560.20 × 97,057.20
  4. Step 4: Simplify right side
    171,706.80x = 24,998,071,843.44
  5. Step 5: Solve for x
    x = 24,998,071,843.44/171,706.80
  6. Step 6: Final answer
    x = 145,585.80

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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.