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Finding the Fourth Proportional to 234,666.70, 351,883.59 and 74,721.81

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Solution

The fourth proportional to 234,666.70, 351,883.59 and 74,721.81 is: 112,045.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    234,666.70 : 351,883.59 = 74,721.81 : x
  2. Step 2: Convert to fraction form
    234,666.70/351,883.59 = 74,721.81/x
  3. Step 3: Cross multiply
    234,666.70x = 351,883.59 × 74,721.81
  4. Step 4: Simplify right side
    234,666.70x = 26,293,378,234.42
  5. Step 5: Solve for x
    x = 26,293,378,234.42/234,666.70
  6. Step 6: Final answer
    x = 112,045.63

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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.