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Finding the Fourth Proportional to 251,971, 377,956.50 and 104,227

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Solution

The fourth proportional to 251,971, 377,956.50 and 104,227 is: 156,340.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    251,971 : 377,956.50 = 104,227 : x
  2. Step 2: Convert to fraction form
    251,971/377,956.50 = 104,227/x
  3. Step 3: Cross multiply
    251,971x = 377,956.50 × 104,227
  4. Step 4: Simplify right side
    251,971x = 39,393,272,125.50
  5. Step 5: Solve for x
    x = 39,393,272,125.50/251,971
  6. Step 6: Final answer
    x = 156,340.50

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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.