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Finding the Fourth Proportional to 224,689.86, 336,921.89 and 74,877.66

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Solution

The fourth proportional to 224,689.86, 336,921.89 and 74,877.66 is: 112,278.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    224,689.86 : 336,921.89 = 74,877.66 : x
  2. Step 2: Convert to fraction form
    224,689.86/336,921.89 = 74,877.66/x
  3. Step 3: Cross multiply
    224,689.86x = 336,921.89 × 74,877.66
  4. Step 4: Simplify right side
    224,689.86x = 25,227,922,351.59
  5. Step 5: Solve for x
    x = 25,227,922,351.59/224,689.86
  6. Step 6: Final answer
    x = 112,278.86

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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.