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Finding the Fourth Proportional to 277,487.52, 416,062.72 and 108,805.75

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Solution

The fourth proportional to 277,487.52, 416,062.72 and 108,805.75 is: 163,142.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    277,487.52 : 416,062.72 = 108,805.75 : x
  2. Step 2: Convert to fraction form
    277,487.52/416,062.72 = 108,805.75/x
  3. Step 3: Cross multiply
    277,487.52x = 416,062.72 × 108,805.75
  4. Step 4: Simplify right side
    277,487.52x = 45,270,013,672.30
  5. Step 5: Solve for x
    x = 45,270,013,672.30/277,487.52
  6. Step 6: Final answer
    x = 163,142.52

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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.