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Finding the Fourth Proportional to 277,654.52, 415,926.83 and 127,689.30

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Solution

The fourth proportional to 277,654.52, 415,926.83 and 127,689.30 is: 191,278.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    277,654.52 : 415,926.83 = 127,689.30 : x
  2. Step 2: Convert to fraction form
    277,654.52/415,926.83 = 127,689.30/x
  3. Step 3: Cross multiply
    277,654.52x = 415,926.83 × 127,689.30
  4. Step 4: Simplify right side
    277,654.52x = 53,109,406,093.14
  5. Step 5: Solve for x
    x = 53,109,406,093.14/277,654.52
  6. Step 6: Final answer
    x = 191,278.74

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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.