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Finding the Fourth Proportional to 251,648.34, 377,705.79 and 127,076.82

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Solution

The fourth proportional to 251,648.34, 377,705.79 and 127,076.82 is: 190,733.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    251,648.34 : 377,705.79 = 127,076.82 : x
  2. Step 2: Convert to fraction form
    251,648.34/377,705.79 = 127,076.82/x
  3. Step 3: Cross multiply
    251,648.34x = 377,705.79 × 127,076.82
  4. Step 4: Simplify right side
    251,648.34x = 47,997,650,688.79
  5. Step 5: Solve for x
    x = 47,997,650,688.79/251,648.34
  6. Step 6: Final answer
    x = 190,733.03

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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.