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Finding the Fourth Proportional to 508,107.41, 762,161.41 and 129,056.57

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Solution

The fourth proportional to 508,107.41, 762,161.41 and 129,056.57 is: 193,584.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    508,107.41 : 762,161.41 = 129,056.57 : x
  2. Step 2: Convert to fraction form
    508,107.41/762,161.41 = 129,056.57/x
  3. Step 3: Cross multiply
    508,107.41x = 762,161.41 × 129,056.57
  4. Step 4: Simplify right side
    508,107.41x = 98,361,935,843.64
  5. Step 5: Solve for x
    x = 98,361,935,843.64/508,107.41
  6. Step 6: Final answer
    x = 193,584.93

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Similar ratio
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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.