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Finding the Fourth Proportional to 251,687.70, 377,663.18 and 101,943.81

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Solution

The fourth proportional to 251,687.70, 377,663.18 and 101,943.81 is: 152,969.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    251,687.70 : 377,663.18 = 101,943.81 : x
  2. Step 2: Convert to fraction form
    251,687.70/377,663.18 = 101,943.81/x
  3. Step 3: Cross multiply
    251,687.70x = 377,663.18 × 101,943.81
  4. Step 4: Simplify right side
    251,687.70x = 38,500,422,956.20
  5. Step 5: Solve for x
    x = 38,500,422,956.20/251,687.70
  6. Step 6: Final answer
    x = 152,969.03

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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.