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Finding the Fourth Proportional to 73,449.40, 110,174.10 and 69,820.60

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Solution

The fourth proportional to 73,449.40, 110,174.10 and 69,820.60 is: 104,730.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,449.40 : 110,174.10 = 69,820.60 : x
  2. Step 2: Convert to fraction form
    73,449.40/110,174.10 = 69,820.60/x
  3. Step 3: Cross multiply
    73,449.40x = 110,174.10 × 69,820.60
  4. Step 4: Simplify right side
    73,449.40x = 7,692,421,766.46
  5. Step 5: Solve for x
    x = 7,692,421,766.46/73,449.40
  6. Step 6: Final answer
    x = 104,730.90

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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.