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Finding the Fourth Proportional to 156,086.80, 233,611.80 and 109,430.80

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Solution

The fourth proportional to 156,086.80, 233,611.80 and 109,430.80 is: 163,782.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,086.80 : 233,611.80 = 109,430.80 : x
  2. Step 2: Convert to fraction form
    156,086.80/233,611.80 = 109,430.80/x
  3. Step 3: Cross multiply
    156,086.80x = 233,611.80 × 109,430.80
  4. Step 4: Simplify right side
    156,086.80x = 25,564,326,163.44
  5. Step 5: Solve for x
    x = 25,564,326,163.44/156,086.80
  6. Step 6: Final answer
    x = 163,782.76

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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.