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Finding the Fourth Proportional to 351,671.31, 526,872.72 and 216,500.13

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Solution

The fourth proportional to 351,671.31, 526,872.72 and 216,500.13 is: 324,359.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    351,671.31 : 526,872.72 = 216,500.13 : x
  2. Step 2: Convert to fraction form
    351,671.31/526,872.72 = 216,500.13/x
  3. Step 3: Cross multiply
    351,671.31x = 526,872.72 × 216,500.13
  4. Step 4: Simplify right side
    351,671.31x = 114,068,012,373.45
  5. Step 5: Solve for x
    x = 114,068,012,373.45/351,671.31
  6. Step 6: Final answer
    x = 324,359.73

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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.