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Finding the Fourth Proportional to 104,003.20, 156,004.80 and 62,012.80

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Solution

The fourth proportional to 104,003.20, 156,004.80 and 62,012.80 is: 93,019.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,003.20 : 156,004.80 = 62,012.80 : x
  2. Step 2: Convert to fraction form
    104,003.20/156,004.80 = 62,012.80/x
  3. Step 3: Cross multiply
    104,003.20x = 156,004.80 × 62,012.80
  4. Step 4: Simplify right side
    104,003.20x = 9,674,294,461.44
  5. Step 5: Solve for x
    x = 9,674,294,461.44/104,003.20
  6. Step 6: Final answer
    x = 93,019.20

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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.