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Finding the Fourth Proportional to 171,190.56, 256,785.12 and 46,531.20

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Solution

The fourth proportional to 171,190.56, 256,785.12 and 46,531.20 is: 69,796.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    171,190.56 : 256,785.12 = 46,531.20 : x
  2. Step 2: Convert to fraction form
    171,190.56/256,785.12 = 46,531.20/x
  3. Step 3: Cross multiply
    171,190.56x = 256,785.12 × 46,531.20
  4. Step 4: Simplify right side
    171,190.56x = 11,948,519,775.74
  5. Step 5: Solve for x
    x = 11,948,519,775.74/171,190.56
  6. Step 6: Final answer
    x = 69,796.60

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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.