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Finding the Fourth Proportional to 72,410.20, 108,485.70 and 62,042.20

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Solution

The fourth proportional to 72,410.20, 108,485.70 and 62,042.20 is: 92,952.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,410.20 : 108,485.70 = 62,042.20 : x
  2. Step 2: Convert to fraction form
    72,410.20/108,485.70 = 62,042.20/x
  3. Step 3: Cross multiply
    72,410.20x = 108,485.70 × 62,042.20
  4. Step 4: Simplify right side
    72,410.20x = 6,730,691,496.54
  5. Step 5: Solve for x
    x = 6,730,691,496.54/72,410.20
  6. Step 6: Final answer
    x = 92,952.26

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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.