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Finding the Fourth Proportional to 104,512.70, 156,769.05 and 62,938.30

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Solution

The fourth proportional to 104,512.70, 156,769.05 and 62,938.30 is: 94,407.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,512.70 : 156,769.05 = 62,938.30 : x
  2. Step 2: Convert to fraction form
    104,512.70/156,769.05 = 62,938.30/x
  3. Step 3: Cross multiply
    104,512.70x = 156,769.05 × 62,938.30
  4. Step 4: Simplify right side
    104,512.70x = 9,866,777,499.62
  5. Step 5: Solve for x
    x = 9,866,777,499.62/104,512.70
  6. Step 6: Final answer
    x = 94,407.45

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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.