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Finding the Fourth Proportional to 84,903.40, 127,052.70 and 73,930.60

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Solution

The fourth proportional to 84,903.40, 127,052.70 and 73,930.60 is: 110,632.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,903.40 : 127,052.70 = 73,930.60 : x
  2. Step 2: Convert to fraction form
    84,903.40/127,052.70 = 73,930.60/x
  3. Step 3: Cross multiply
    84,903.40x = 127,052.70 × 73,930.60
  4. Step 4: Simplify right side
    84,903.40x = 9,393,082,342.62
  5. Step 5: Solve for x
    x = 9,393,082,342.62/84,903.40
  6. Step 6: Final answer
    x = 110,632.58

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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.