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Finding the Fourth Proportional to 275,302.41, 412,948.76 and 75,622.02

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Solution

The fourth proportional to 275,302.41, 412,948.76 and 75,622.02 is: 113,431.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    275,302.41 : 412,948.76 = 75,622.02 : x
  2. Step 2: Convert to fraction form
    275,302.41/412,948.76 = 75,622.02/x
  3. Step 3: Cross multiply
    275,302.41x = 412,948.76 × 75,622.02
  4. Step 4: Simplify right side
    275,302.41x = 31,228,019,009.59
  5. Step 5: Solve for x
    x = 31,228,019,009.59/275,302.41
  6. Step 6: Final answer
    x = 113,431.70

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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.