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Finding the Fourth Proportional to 118,469.66, 163,487.87 and 67,482.36

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Solution

The fourth proportional to 118,469.66, 163,487.87 and 67,482.36 is: 93,125.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,469.66 : 163,487.87 = 67,482.36 : x
  2. Step 2: Convert to fraction form
    118,469.66/163,487.87 = 67,482.36/x
  3. Step 3: Cross multiply
    118,469.66x = 163,487.87 × 67,482.36
  4. Step 4: Simplify right side
    118,469.66x = 11,032,546,961.56
  5. Step 5: Solve for x
    x = 11,032,546,961.56/118,469.66
  6. Step 6: Final answer
    x = 93,125.51

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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.