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Finding the Fourth Proportional to 108,425.92, 149,624.55 and 60,030

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Solution

The fourth proportional to 108,425.92, 149,624.55 and 60,030 is: 82,839.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,425.92 : 149,624.55 = 60,030 : x
  2. Step 2: Convert to fraction form
    108,425.92/149,624.55 = 60,030/x
  3. Step 3: Cross multiply
    108,425.92x = 149,624.55 × 60,030
  4. Step 4: Simplify right side
    108,425.92x = 8,981,961,736.50
  5. Step 5: Solve for x
    x = 8,981,961,736.50/108,425.92
  6. Step 6: Final answer
    x = 82,839.62

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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.