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Finding the Fourth Proportional to 156,533.88, 234,620.80 and 67,698.12

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Solution

The fourth proportional to 156,533.88, 234,620.80 and 67,698.12 is: 101,469.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,533.88 : 234,620.80 = 67,698.12 : x
  2. Step 2: Convert to fraction form
    156,533.88/234,620.80 = 67,698.12/x
  3. Step 3: Cross multiply
    156,533.88x = 234,620.80 × 67,698.12
  4. Step 4: Simplify right side
    156,533.88x = 15,883,387,072.90
  5. Step 5: Solve for x
    x = 15,883,387,072.90/156,533.88
  6. Step 6: Final answer
    x = 101,469.32

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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.