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Finding the Fourth Proportional to 272,530.78, 408,796.34 and 122,595.93

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Solution

The fourth proportional to 272,530.78, 408,796.34 and 122,595.93 is: 183,893.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    272,530.78 : 408,796.34 = 122,595.93 : x
  2. Step 2: Convert to fraction form
    272,530.78/408,796.34 = 122,595.93/x
  3. Step 3: Cross multiply
    272,530.78x = 408,796.34 × 122,595.93
  4. Step 4: Simplify right side
    272,530.78x = 50,116,766,869.92
  5. Step 5: Solve for x
    x = 50,116,766,869.92/272,530.78
  6. Step 6: Final answer
    x = 183,893.97

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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.