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Finding the Fourth Proportional to 277,218.01, 415,871.85 and 108,646.88

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Solution

The fourth proportional to 277,218.01, 415,871.85 and 108,646.88 is: 162,987.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    277,218.01 : 415,871.85 = 108,646.88 : x
  2. Step 2: Convert to fraction form
    277,218.01/415,871.85 = 108,646.88/x
  3. Step 3: Cross multiply
    277,218.01x = 415,871.85 × 108,646.88
  4. Step 4: Simplify right side
    277,218.01x = 45,183,178,982.33
  5. Step 5: Solve for x
    x = 45,183,178,982.33/277,218.01
  6. Step 6: Final answer
    x = 162,987.89

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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.