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Finding the Fourth Proportional to 272,938.32, 409,350.96 and 73,211.22

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Solution

The fourth proportional to 272,938.32, 409,350.96 and 73,211.22 is: 109,801.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    272,938.32 : 409,350.96 = 73,211.22 : x
  2. Step 2: Convert to fraction form
    272,938.32/409,350.96 = 73,211.22/x
  3. Step 3: Cross multiply
    272,938.32x = 409,350.96 × 73,211.22
  4. Step 4: Simplify right side
    272,938.32x = 29,969,083,189.77
  5. Step 5: Solve for x
    x = 29,969,083,189.77/272,938.32
  6. Step 6: Final answer
    x = 109,801.67

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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.