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Finding the Fourth Proportional to 207,611.97, 286,504.50 and 112,118.66

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Solution

The fourth proportional to 207,611.97, 286,504.50 and 112,118.66 is: 154,723.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,611.97 : 286,504.50 = 112,118.66 : x
  2. Step 2: Convert to fraction form
    207,611.97/286,504.50 = 112,118.66/x
  3. Step 3: Cross multiply
    207,611.97x = 286,504.50 × 112,118.66
  4. Step 4: Simplify right side
    207,611.97x = 32,122,499,191.45
  5. Step 5: Solve for x
    x = 32,122,499,191.45/207,611.97
  6. Step 6: Final answer
    x = 154,723.73

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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.