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Finding the Fourth Proportional to 170,772.68, 256,171.30 and 65,591.64

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Solution

The fourth proportional to 170,772.68, 256,171.30 and 65,591.64 is: 98,392.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    170,772.68 : 256,171.30 = 65,591.64 : x
  2. Step 2: Convert to fraction form
    170,772.68/256,171.30 = 65,591.64/x
  3. Step 3: Cross multiply
    170,772.68x = 256,171.30 × 65,591.64
  4. Step 4: Simplify right side
    170,772.68x = 16,802,695,687.93
  5. Step 5: Solve for x
    x = 16,802,695,687.93/170,772.68
  6. Step 6: Final answer
    x = 98,392.18

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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.