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Finding the Fourth Proportional to 99,467.53, 149,202.86 and 55,374.54

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Solution

The fourth proportional to 99,467.53, 149,202.86 and 55,374.54 is: 83,062.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,467.53 : 149,202.86 = 55,374.54 : x
  2. Step 2: Convert to fraction form
    99,467.53/149,202.86 = 55,374.54/x
  3. Step 3: Cross multiply
    99,467.53x = 149,202.86 × 55,374.54
  4. Step 4: Simplify right side
    99,467.53x = 8,262,039,739.18
  5. Step 5: Solve for x
    x = 8,262,039,739.18/99,467.53
  6. Step 6: Final answer
    x = 83,062.68

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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.