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Finding the Fourth Proportional to 536,105.64, 804,164.70 and 136,745.64

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Solution

The fourth proportional to 536,105.64, 804,164.70 and 136,745.64 is: 205,120.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    536,105.64 : 804,164.70 = 136,745.64 : x
  2. Step 2: Convert to fraction form
    536,105.64/804,164.70 = 136,745.64/x
  3. Step 3: Cross multiply
    536,105.64x = 804,164.70 × 136,745.64
  4. Step 4: Simplify right side
    536,105.64x = 109,966,016,566.91
  5. Step 5: Solve for x
    x = 109,966,016,566.91/536,105.64
  6. Step 6: Final answer
    x = 205,120.05

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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.