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Finding the Fourth Proportional to 89,170.40, 133,690.80 and 36,552.80

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Solution

The fourth proportional to 89,170.40, 133,690.80 and 36,552.80 is: 54,802.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,170.40 : 133,690.80 = 36,552.80 : x
  2. Step 2: Convert to fraction form
    89,170.40/133,690.80 = 36,552.80/x
  3. Step 3: Cross multiply
    89,170.40x = 133,690.80 × 36,552.80
  4. Step 4: Simplify right side
    89,170.40x = 4,886,773,074.24
  5. Step 5: Solve for x
    x = 4,886,773,074.24/89,170.40
  6. Step 6: Final answer
    x = 54,802.64

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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.