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Finding the Fourth Proportional to 170,616.60, 255,924.87 and 91,622.16

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Solution

The fourth proportional to 170,616.60, 255,924.87 and 91,622.16 is: 137,433.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    170,616.60 : 255,924.87 = 91,622.16 : x
  2. Step 2: Convert to fraction form
    170,616.60/255,924.87 = 91,622.16/x
  3. Step 3: Cross multiply
    170,616.60x = 255,924.87 × 91,622.16
  4. Step 4: Simplify right side
    170,616.60x = 23,448,389,387.12
  5. Step 5: Solve for x
    x = 23,448,389,387.12/170,616.60
  6. Step 6: Final answer
    x = 137,433.22

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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.