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Finding the Fourth Proportional to 171,805.64, 257,704.61 and 59,479.07

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Solution

The fourth proportional to 171,805.64, 257,704.61 and 59,479.07 is: 89,217.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    171,805.64 : 257,704.61 = 59,479.07 : x
  2. Step 2: Convert to fraction form
    171,805.64/257,704.61 = 59,479.07/x
  3. Step 3: Cross multiply
    171,805.64x = 257,704.61 × 59,479.07
  4. Step 4: Simplify right side
    171,805.64x = 15,328,028,951.59
  5. Step 5: Solve for x
    x = 15,328,028,951.59/171,805.64
  6. Step 6: Final answer
    x = 89,217.27

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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.