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Finding the Fourth Proportional to 118,227.60, 177,341.40 and 73,940.85

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Solution

The fourth proportional to 118,227.60, 177,341.40 and 73,940.85 is: 110,911.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,227.60 : 177,341.40 = 73,940.85 : x
  2. Step 2: Convert to fraction form
    118,227.60/177,341.40 = 73,940.85/x
  3. Step 3: Cross multiply
    118,227.60x = 177,341.40 × 73,940.85
  4. Step 4: Simplify right side
    118,227.60x = 13,112,773,856.19
  5. Step 5: Solve for x
    x = 13,112,773,856.19/118,227.60
  6. Step 6: Final answer
    x = 110,911.28

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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.