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Finding the Fourth Proportional to 89,583.60, 134,245.80 and 39,622.80

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Solution

The fourth proportional to 89,583.60, 134,245.80 and 39,622.80 is: 59,376.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,583.60 : 134,245.80 = 39,622.80 : x
  2. Step 2: Convert to fraction form
    89,583.60/134,245.80 = 39,622.80/x
  3. Step 3: Cross multiply
    89,583.60x = 134,245.80 × 39,622.80
  4. Step 4: Simplify right side
    89,583.60x = 5,319,194,484.24
  5. Step 5: Solve for x
    x = 5,319,194,484.24/89,583.60
  6. Step 6: Final answer
    x = 59,376.88

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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.