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Finding the Fourth Proportional to 92,344.56, 138,521.00 and 28,298.09

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Solution

The fourth proportional to 92,344.56, 138,521.00 and 28,298.09 is: 42,448.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,344.56 : 138,521.00 = 28,298.09 : x
  2. Step 2: Convert to fraction form
    92,344.56/138,521.00 = 28,298.09/x
  3. Step 3: Cross multiply
    92,344.56x = 138,521.00 × 28,298.09
  4. Step 4: Simplify right side
    92,344.56x = 3,919,879,795.64
  5. Step 5: Solve for x
    x = 3,919,879,795.64/92,344.56
  6. Step 6: Final answer
    x = 42,448.41

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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.