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Finding the Fourth Proportional to 273,640.48, 410,421.12 and 73,972.48

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Solution

The fourth proportional to 273,640.48, 410,421.12 and 73,972.48 is: 110,948.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    273,640.48 : 410,421.12 = 73,972.48 : x
  2. Step 2: Convert to fraction form
    273,640.48/410,421.12 = 73,972.48/x
  3. Step 3: Cross multiply
    273,640.48x = 410,421.12 × 73,972.48
  4. Step 4: Simplify right side
    273,640.48x = 30,359,868,090.78
  5. Step 5: Solve for x
    x = 30,359,868,090.78/273,640.48
  6. Step 6: Final answer
    x = 110,948.02

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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.