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Finding the Fourth Proportional to 89,866.80, 134,848.80 and 37,281.60

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Solution

The fourth proportional to 89,866.80, 134,848.80 and 37,281.60 is: 55,942.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,866.80 : 134,848.80 = 37,281.60 : x
  2. Step 2: Convert to fraction form
    89,866.80/134,848.80 = 37,281.60/x
  3. Step 3: Cross multiply
    89,866.80x = 134,848.80 × 37,281.60
  4. Step 4: Simplify right side
    89,866.80x = 5,027,379,022.08
  5. Step 5: Solve for x
    x = 5,027,379,022.08/89,866.80
  6. Step 6: Final answer
    x = 55,942.56

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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.