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Finding the Fourth Proportional to 351,242.60, 526,863.90 and 161,702.60

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Solution

The fourth proportional to 351,242.60, 526,863.90 and 161,702.60 is: 242,553.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    351,242.60 : 526,863.90 = 161,702.60 : x
  2. Step 2: Convert to fraction form
    351,242.60/526,863.90 = 161,702.60/x
  3. Step 3: Cross multiply
    351,242.60x = 526,863.90 × 161,702.60
  4. Step 4: Simplify right side
    351,242.60x = 85,195,262,476.14
  5. Step 5: Solve for x
    x = 85,195,262,476.14/351,242.60
  6. Step 6: Final answer
    x = 242,553.90

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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.