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Finding the Fourth Proportional to 156,689.88, 234,539.04 and 100,454.88

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Solution

The fourth proportional to 156,689.88, 234,539.04 and 100,454.88 is: 150,364.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,689.88 : 234,539.04 = 100,454.88 : x
  2. Step 2: Convert to fraction form
    156,689.88/234,539.04 = 100,454.88/x
  3. Step 3: Cross multiply
    156,689.88x = 234,539.04 × 100,454.88
  4. Step 4: Simplify right side
    156,689.88x = 23,560,591,118.52
  5. Step 5: Solve for x
    x = 23,560,591,118.52/156,689.88
  6. Step 6: Final answer
    x = 150,364.47

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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.