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Finding the Fourth Proportional to 92,063.79, 138,095.82 and 28,022.49

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Solution

The fourth proportional to 92,063.79, 138,095.82 and 28,022.49 is: 42,033.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,063.79 : 138,095.82 = 28,022.49 : x
  2. Step 2: Convert to fraction form
    92,063.79/138,095.82 = 28,022.49/x
  3. Step 3: Cross multiply
    92,063.79x = 138,095.82 × 28,022.49
  4. Step 4: Simplify right side
    92,063.79x = 3,869,788,734.99
  5. Step 5: Solve for x
    x = 3,869,788,734.99/92,063.79
  6. Step 6: Final answer
    x = 42,033.78

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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.