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Finding the Fourth Proportional to 118,874.50, 177,072.99 and 112,563.52

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Solution

The fourth proportional to 118,874.50, 177,072.99 and 112,563.52 is: 167,672.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,874.50 : 177,072.99 = 112,563.52 : x
  2. Step 2: Convert to fraction form
    118,874.50/177,072.99 = 112,563.52/x
  3. Step 3: Cross multiply
    118,874.50x = 177,072.99 × 112,563.52
  4. Step 4: Simplify right side
    118,874.50x = 19,931,959,051.32
  5. Step 5: Solve for x
    x = 19,931,959,051.32/118,874.50
  6. Step 6: Final answer
    x = 167,672.29

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.