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Finding the Fourth Proportional to 89,116.79, 133,675.28 and 26,787.29

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Solution

The fourth proportional to 89,116.79, 133,675.28 and 26,787.29 is: 40,180.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,116.79 : 133,675.28 = 26,787.29 : x
  2. Step 2: Convert to fraction form
    89,116.79/133,675.28 = 26,787.29/x
  3. Step 3: Cross multiply
    89,116.79x = 133,675.28 × 26,787.29
  4. Step 4: Simplify right side
    89,116.79x = 3,580,798,223.97
  5. Step 5: Solve for x
    x = 3,580,798,223.97/89,116.79
  6. Step 6: Final answer
    x = 40,180.96

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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.