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Finding the Fourth Proportional to 201,893.70, 302,840.55 and 123,161.70

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Solution

The fourth proportional to 201,893.70, 302,840.55 and 123,161.70 is: 184,742.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,893.70 : 302,840.55 = 123,161.70 : x
  2. Step 2: Convert to fraction form
    201,893.70/302,840.55 = 123,161.70/x
  3. Step 3: Cross multiply
    201,893.70x = 302,840.55 × 123,161.70
  4. Step 4: Simplify right side
    201,893.70x = 37,298,356,966.94
  5. Step 5: Solve for x
    x = 37,298,356,966.94/201,893.70
  6. Step 6: Final answer
    x = 184,742.55

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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.