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Finding the Fourth Proportional to 92,345.56, 138,522.50 and 28,299.09

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Solution

The fourth proportional to 92,345.56, 138,522.50 and 28,299.09 is: 42,449.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,345.56 : 138,522.50 = 28,299.09 : x
  2. Step 2: Convert to fraction form
    92,345.56/138,522.50 = 28,299.09/x
  3. Step 3: Cross multiply
    92,345.56x = 138,522.50 × 28,299.09
  4. Step 4: Simplify right side
    92,345.56x = 3,920,060,694.53
  5. Step 5: Solve for x
    x = 3,920,060,694.53/92,345.56
  6. Step 6: Final answer
    x = 42,449.91

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.