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Finding the Fourth Proportional to 117,611.97, 162,301.36 and 69,216.75

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Solution

The fourth proportional to 117,611.97, 162,301.36 and 69,216.75 is: 95,517.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,611.97 : 162,301.36 = 69,216.75 : x
  2. Step 2: Convert to fraction form
    117,611.97/162,301.36 = 69,216.75/x
  3. Step 3: Cross multiply
    117,611.97x = 162,301.36 × 69,216.75
  4. Step 4: Simplify right side
    117,611.97x = 11,233,971,980.48
  5. Step 5: Solve for x
    x = 11,233,971,980.48/117,611.97
  6. Step 6: Final answer
    x = 95,517.25

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.