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Finding the Fourth Proportional to 201,865.70, 302,215.35 and 123,133.70

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Solution

The fourth proportional to 201,865.70, 302,215.35 and 123,133.70 is: 184,344.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,865.70 : 302,215.35 = 123,133.70 : x
  2. Step 2: Convert to fraction form
    201,865.70/302,215.35 = 123,133.70/x
  3. Step 3: Cross multiply
    201,865.70x = 302,215.35 × 123,133.70
  4. Step 4: Simplify right side
    201,865.70x = 37,212,894,242.30
  5. Step 5: Solve for x
    x = 37,212,894,242.30/201,865.70
  6. Step 6: Final answer
    x = 184,344.81

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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.