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Finding the Fourth Proportional to 234,573.40, 323,711.64 and 127,143.41

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Solution

The fourth proportional to 234,573.40, 323,711.64 and 127,143.41 is: 175,458.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    234,573.40 : 323,711.64 = 127,143.41 : x
  2. Step 2: Convert to fraction form
    234,573.40/323,711.64 = 127,143.41/x
  3. Step 3: Cross multiply
    234,573.40x = 323,711.64 × 127,143.41
  4. Step 4: Simplify right side
    234,573.40x = 41,157,801,766.29
  5. Step 5: Solve for x
    x = 41,157,801,766.29/234,573.40
  6. Step 6: Final answer
    x = 175,458.09

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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.