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Finding the Fourth Proportional to 170,797.74, 256,352.85 and 86,616.01

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Solution

The fourth proportional to 170,797.74, 256,352.85 and 86,616.01 is: 130,003.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    170,797.74 : 256,352.85 = 86,616.01 : x
  2. Step 2: Convert to fraction form
    170,797.74/256,352.85 = 86,616.01/x
  3. Step 3: Cross multiply
    170,797.74x = 256,352.85 × 86,616.01
  4. Step 4: Simplify right side
    170,797.74x = 22,204,261,019.13
  5. Step 5: Solve for x
    x = 22,204,261,019.13/170,797.74
  6. Step 6: Final answer
    x = 130,003.25

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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.