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Finding the Fourth Proportional to 170,790.80, 256,224.60 and 52,467.60

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Solution

The fourth proportional to 170,790.80, 256,224.60 and 52,467.60 is: 78,713.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    170,790.80 : 256,224.60 = 52,467.60 : x
  2. Step 2: Convert to fraction form
    170,790.80/256,224.60 = 52,467.60/x
  3. Step 3: Cross multiply
    170,790.80x = 256,224.60 × 52,467.60
  4. Step 4: Simplify right side
    170,790.80x = 13,443,489,822.96
  5. Step 5: Solve for x
    x = 13,443,489,822.96/170,790.80
  6. Step 6: Final answer
    x = 78,713.20

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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.