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Finding the Fourth Proportional to 118,673.42, 177,887.11 and 74,198.04

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Solution

The fourth proportional to 118,673.42, 177,887.11 and 74,198.04 is: 111,220.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,673.42 : 177,887.11 = 74,198.04 : x
  2. Step 2: Convert to fraction form
    118,673.42/177,887.11 = 74,198.04/x
  3. Step 3: Cross multiply
    118,673.42x = 177,887.11 × 74,198.04
  4. Step 4: Simplify right side
    118,673.42x = 13,198,875,347.98
  5. Step 5: Solve for x
    x = 13,198,875,347.98/118,673.42
  6. Step 6: Final answer
    x = 111,220.15

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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.