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Finding the Fourth Proportional to 106,936.60, 160,419.30 and 36,837.40

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Solution

The fourth proportional to 106,936.60, 160,419.30 and 36,837.40 is: 55,261.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    106,936.60 : 160,419.30 = 36,837.40 : x
  2. Step 2: Convert to fraction form
    106,936.60/160,419.30 = 36,837.40/x
  3. Step 3: Cross multiply
    106,936.60x = 160,419.30 × 36,837.40
  4. Step 4: Simplify right side
    106,936.60x = 5,909,429,921.82
  5. Step 5: Solve for x
    x = 5,909,429,921.82/106,936.60
  6. Step 6: Final answer
    x = 55,261.06

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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.