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Finding the Fourth Proportional to 234,171.32, 323,153.88 and 126,739.04

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Solution

The fourth proportional to 234,171.32, 323,153.88 and 126,739.04 is: 174,898.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    234,171.32 : 323,153.88 = 126,739.04 : x
  2. Step 2: Convert to fraction form
    234,171.32/323,153.88 = 126,739.04/x
  3. Step 3: Cross multiply
    234,171.32x = 323,153.88 × 126,739.04
  4. Step 4: Simplify right side
    234,171.32x = 40,956,212,523.48
  5. Step 5: Solve for x
    x = 40,956,212,523.48/234,171.32
  6. Step 6: Final answer
    x = 174,898.50

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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.