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Finding the Fourth Proportional to 116,489.60, 174,583.20 and 54,027.20

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Solution

The fourth proportional to 116,489.60, 174,583.20 and 54,027.20 is: 80,970.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    116,489.60 : 174,583.20 = 54,027.20 : x
  2. Step 2: Convert to fraction form
    116,489.60/174,583.20 = 54,027.20/x
  3. Step 3: Cross multiply
    116,489.60x = 174,583.20 × 54,027.20
  4. Step 4: Simplify right side
    116,489.60x = 9,432,241,463.04
  5. Step 5: Solve for x
    x = 9,432,241,463.04/116,489.60
  6. Step 6: Final answer
    x = 80,970.67

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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.