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Finding the Fourth Proportional to 171,002.61, 256,508.33 and 81,024.21

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Solution

The fourth proportional to 171,002.61, 256,508.33 and 81,024.21 is: 121,538.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    171,002.61 : 256,508.33 = 81,024.21 : x
  2. Step 2: Convert to fraction form
    171,002.61/256,508.33 = 81,024.21/x
  3. Step 3: Cross multiply
    171,002.61x = 256,508.33 × 81,024.21
  4. Step 4: Simplify right side
    171,002.61x = 20,783,384,391.55
  5. Step 5: Solve for x
    x = 20,783,384,391.55/171,002.61
  6. Step 6: Final answer
    x = 121,538.40

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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.