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Finding the Fourth Proportional to 254,850.66, 351,702.90 and 140,138.04

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Solution

The fourth proportional to 254,850.66, 351,702.90 and 140,138.04 is: 193,395.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    254,850.66 : 351,702.90 = 140,138.04 : x
  2. Step 2: Convert to fraction form
    254,850.66/351,702.90 = 140,138.04/x
  3. Step 3: Cross multiply
    254,850.66x = 351,702.90 × 140,138.04
  4. Step 4: Simplify right side
    254,850.66x = 49,286,955,068.32
  5. Step 5: Solve for x
    x = 49,286,955,068.32/254,850.66
  6. Step 6: Final answer
    x = 193,395.44

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.