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Finding the Fourth Proportional to 277,209.59, 415,859.27 and 108,638.52

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Solution

The fourth proportional to 277,209.59, 415,859.27 and 108,638.52 is: 162,975.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    277,209.59 : 415,859.27 = 108,638.52 : x
  2. Step 2: Convert to fraction form
    277,209.59/415,859.27 = 108,638.52/x
  3. Step 3: Cross multiply
    277,209.59x = 415,859.27 × 108,638.52
  4. Step 4: Simplify right side
    277,209.59x = 45,178,333,518.42
  5. Step 5: Solve for x
    x = 45,178,333,518.42/277,209.59
  6. Step 6: Final answer
    x = 162,975.36

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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.