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Finding the Fourth Proportional to 238,491.90, 329,102.91 and 131,059.62

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Solution

The fourth proportional to 238,491.90, 329,102.91 and 131,059.62 is: 180,853.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    238,491.90 : 329,102.91 = 131,059.62 : x
  2. Step 2: Convert to fraction form
    238,491.90/329,102.91 = 131,059.62/x
  3. Step 3: Cross multiply
    238,491.90x = 329,102.91 × 131,059.62
  4. Step 4: Simplify right side
    238,491.90x = 43,132,102,325.49
  5. Step 5: Solve for x
    x = 43,132,102,325.49/238,491.90
  6. Step 6: Final answer
    x = 180,853.53

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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.