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Finding the Fourth Proportional to 118,455.37, 163,468.14 and 67,468.09

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Solution

The fourth proportional to 118,455.37, 163,468.14 and 67,468.09 is: 93,105.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,455.37 : 163,468.14 = 67,468.09 : x
  2. Step 2: Convert to fraction form
    118,455.37/163,468.14 = 67,468.09/x
  3. Step 3: Cross multiply
    118,455.37x = 163,468.14 × 67,468.09
  4. Step 4: Simplify right side
    118,455.37x = 11,028,883,181.65
  5. Step 5: Solve for x
    x = 11,028,883,181.65/118,455.37
  6. Step 6: Final answer
    x = 93,105.81

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.