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Finding the Fourth Proportional to 89,348.40, 133,957.80 and 36,730.80

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Solution

The fourth proportional to 89,348.40, 133,957.80 and 36,730.80 is: 55,069.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,348.40 : 133,957.80 = 36,730.80 : x
  2. Step 2: Convert to fraction form
    89,348.40/133,957.80 = 36,730.80/x
  3. Step 3: Cross multiply
    89,348.40x = 133,957.80 × 36,730.80
  4. Step 4: Simplify right side
    89,348.40x = 4,920,377,160.24
  5. Step 5: Solve for x
    x = 4,920,377,160.24/89,348.40
  6. Step 6: Final answer
    x = 55,069.56

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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.