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Finding the Fourth Proportional to 71,303.36, 106,902.03 and 43,216.52

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Solution

The fourth proportional to 71,303.36, 106,902.03 and 43,216.52 is: 64,792.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,303.36 : 106,902.03 = 43,216.52 : x
  2. Step 2: Convert to fraction form
    71,303.36/106,902.03 = 43,216.52/x
  3. Step 3: Cross multiply
    71,303.36x = 106,902.03 × 43,216.52
  4. Step 4: Simplify right side
    71,303.36x = 4,619,933,717.54
  5. Step 5: Solve for x
    x = 4,619,933,717.54/71,303.36
  6. Step 6: Final answer
    x = 64,792.65

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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.