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Finding the Fourth Proportional to 171,179.21, 256,878.98 and 92,347.85

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Solution

The fourth proportional to 171,179.21, 256,878.98 and 92,347.85 is: 138,581.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    171,179.21 : 256,878.98 = 92,347.85 : x
  2. Step 2: Convert to fraction form
    171,179.21/256,878.98 = 92,347.85/x
  3. Step 3: Cross multiply
    171,179.21x = 256,878.98 × 92,347.85
  4. Step 4: Simplify right side
    171,179.21x = 23,722,221,513.19
  5. Step 5: Solve for x
    x = 23,722,221,513.19/171,179.21
  6. Step 6: Final answer
    x = 138,581.21

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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.