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Finding the Fourth Proportional to 114,987.75, 158,659.20 and 67,231.86

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Solution

The fourth proportional to 114,987.75, 158,659.20 and 67,231.86 is: 92,766.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    114,987.75 : 158,659.20 = 67,231.86 : x
  2. Step 2: Convert to fraction form
    114,987.75/158,659.20 = 67,231.86/x
  3. Step 3: Cross multiply
    114,987.75x = 158,659.20 × 67,231.86
  4. Step 4: Simplify right side
    114,987.75x = 10,666,953,122.11
  5. Step 5: Solve for x
    x = 10,666,953,122.11/114,987.75
  6. Step 6: Final answer
    x = 92,766.00

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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.