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Finding the Fourth Proportional to 170,720.60, 256,080.90 and 170,720.60

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Solution

The fourth proportional to 170,720.60, 256,080.90 and 170,720.60 is: 256,080.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    170,720.60 : 256,080.90 = 170,720.60 : x
  2. Step 2: Convert to fraction form
    170,720.60/256,080.90 = 170,720.60/x
  3. Step 3: Cross multiply
    170,720.60x = 256,080.90 × 170,720.60
  4. Step 4: Simplify right side
    170,720.60x = 43,718,284,896.54
  5. Step 5: Solve for x
    x = 43,718,284,896.54/170,720.60
  6. Step 6: Final answer
    x = 256,080.90

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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.