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Finding the Fourth Proportional to 491,454.21, 737,181.32 and 136,468.23

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Solution

The fourth proportional to 491,454.21, 737,181.32 and 136,468.23 is: 204,702.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    491,454.21 : 737,181.32 = 136,468.23 : x
  2. Step 2: Convert to fraction form
    491,454.21/737,181.32 = 136,468.23/x
  3. Step 3: Cross multiply
    491,454.21x = 737,181.32 × 136,468.23
  4. Step 4: Simplify right side
    491,454.21x = 100,601,829,784.59
  5. Step 5: Solve for x
    x = 100,601,829,784.59/491,454.21
  6. Step 6: Final answer
    x = 204,702.35

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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.