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Finding the Fourth Proportional to 92,081.34, 137,990.25 and 73,276.65

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Solution

The fourth proportional to 92,081.34, 137,990.25 and 73,276.65 is: 109,810.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,081.34 : 137,990.25 = 73,276.65 : x
  2. Step 2: Convert to fraction form
    92,081.34/137,990.25 = 73,276.65/x
  3. Step 3: Cross multiply
    92,081.34x = 137,990.25 × 73,276.65
  4. Step 4: Simplify right side
    92,081.34x = 10,111,463,252.66
  5. Step 5: Solve for x
    x = 10,111,463,252.66/92,081.34
  6. Step 6: Final answer
    x = 109,810.12

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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.