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Finding the Fourth Proportional to 92,683.53, 137,832.89 and 89,731.08

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Solution

The fourth proportional to 92,683.53, 137,832.89 and 89,731.08 is: 133,442.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,683.53 : 137,832.89 = 89,731.08 : x
  2. Step 2: Convert to fraction form
    92,683.53/137,832.89 = 89,731.08/x
  3. Step 3: Cross multiply
    92,683.53x = 137,832.89 × 89,731.08
  4. Step 4: Simplify right side
    92,683.53x = 12,367,893,630.57
  5. Step 5: Solve for x
    x = 12,367,893,630.57/92,683.53
  6. Step 6: Final answer
    x = 133,442.19

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.