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Finding the Fourth Proportional to 97,722.60, 146,583.90 and 74,394.60

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Solution

The fourth proportional to 97,722.60, 146,583.90 and 74,394.60 is: 111,591.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    97,722.60 : 146,583.90 = 74,394.60 : x
  2. Step 2: Convert to fraction form
    97,722.60/146,583.90 = 74,394.60/x
  3. Step 3: Cross multiply
    97,722.60x = 146,583.90 × 74,394.60
  4. Step 4: Simplify right side
    97,722.60x = 10,905,050,606.94
  5. Step 5: Solve for x
    x = 10,905,050,606.94/97,722.60
  6. Step 6: Final answer
    x = 111,591.90

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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.