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Finding the Fourth Proportional to 236,896.11, 355,484.16 and 87,241.59

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Solution

The fourth proportional to 236,896.11, 355,484.16 and 87,241.59 is: 130,913.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    236,896.11 : 355,484.16 = 87,241.59 : x
  2. Step 2: Convert to fraction form
    236,896.11/355,484.16 = 87,241.59/x
  3. Step 3: Cross multiply
    236,896.11x = 355,484.16 × 87,241.59
  4. Step 4: Simplify right side
    236,896.11x = 31,013,003,338.21
  5. Step 5: Solve for x
    x = 31,013,003,338.21/236,896.11
  6. Step 6: Final answer
    x = 130,913.94

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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.